Transmission Parts for 105/115 Series Alfa Romeo

Gearbox Rebuild Service

Gearbox Rebuild Service

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We provide a service to rebuild your gear box

Alfaholics Premium Quality Gearbox Rebuild Kit

Alfaholics Premium Quality Gearbox Rebuild Kit

£1200.00 - £1320.00 GBP (ex vat)

PACK005/EAR

Full set of components required to rebuild all moly-synchro type 105 series gearboxes. The kit comprises our ultimate quality Alfaholics synchro rings & Alfaholics sleeves as well as our best quality gearbox bearings, oil seal and heavy duty rear mount. Please specify if you need a layshaft front bearing of 20mm or 25mm internal diameter. Please note that the synchros are not compatible with the first series of mechanical gearboxes (1963-1966) which featured non-moly synchros.

Alfaholics Production Early to Late Gearbox Synchromesh Conversion Kit

Alfaholics Production Early to Late Gearbox Synchromesh Conversion Kit

£1525.00 GBP (ex vat)

GRB/LCON

Full kit of parts to convert an early (101 & early 105) non-molybdenum synchromesh “yellow label” gearbox to later improved molybdenum coated synchros as per late “red label” gearboxes. Full set of all Alfaholics produced premium quality components, including synchro rings, synchro sleeves, brake straps, reference sectors and brake sectors for all 5 gears. A great upgrade when rebuilding any early gearbox with grooved synchos.

Alfaholics Premium Quality Synchromesh Ring - Competition Use

Alfaholics Premium Quality Synchromesh Ring - Competition Use

£110.00 GBP (ex vat)

RCE6008/5

New production - exclusive to Alfaholics. We chose to manufacture these new premium quality synchro rings due to the continuing issues with the reproduction rings currently available on the market. It is common knowledge among Alfa racers round the world that the reproduction rings are not made to the correct tolerances and this leads to baulked gearchanges and premature molybdenum coating wear, particularly noticeable during track and fast road use. Until now there has been no solution to the problem, as only the standard reproduction rings have been available. Up until 10 years ago when the genuine Alfa synchro rings...

Premium Quality Synchro Ring - OEM

Premium Quality Synchro Ring - OEM

£90.00 GBP (ex vat)

RCE6008OEM

High quality OEM moly-coated synchro ring for use on restoration and road cars. For competition use, we recommend our competition synchro ring for a faster action gearchange.

Synchro Ring

Synchro Ring

£40.00 GBP (ex vat)

GRB003

Standard quality. For trackday and competition cars we recommend using our own premium quality production above this listing.

Alfaholics Premium Quality Synchromesh Sleeve

Alfaholics Premium Quality Synchromesh Sleeve

£140.00 GBP (ex vat)

RCE6008/6

New production - exclusive to Alfaholics.  We chose to manufacture these new premium quality synchro sleeves due to the availability of new original Alfa synchro sleeves finally ceasing in 2012. When this happened, we tried first to source the already available reproduction sleeves to try them out. When they arrived we noticed an obvious difference in tooth profile which made the rings hard to slide in and out of the sleeves on the bench. During driving, gear baulking, not dissimilar to using the cheap reproduction synchro rings was observed. At this point we knew that we had no option but...

Synchro Sleeve

Synchro Sleeve

£85.00 GBP (ex vat)

GRB004

Synchro sleeve - Reproduction

Synchro Brake Strap 1st Gear

Synchro Brake Strap 1st Gear

£25.00 GBP (ex vat)

STRP1ST

Premium quality Alfaholics production. Internal synchro strap for 1st gear, 1 required. We have made these to replace the often damaged part found fitted inside the synchro assembly. Typically these just get reused each time the gearboxes get rebuilt, but they are now getting to an age where these are simply damaged and will not allow the synchro to operate as it should.

Gearbox Brake Sector - 1st Gear

Gearbox Brake Sector - 1st Gear

£29.95 GBP (ex vat)

GBOXBS1

Gearbox break sector  for 1st gear to suit all 105 gearboxes. 1 needed per box.

Gearbox Brake Sector

Gearbox Brake Sector

£29.95 GBP (ex vat)

GBOXBS

Gearbox brake sector for 2nd, 3rd, 4th & 5th gears to suit all 105 gearboxes. 4 required per gearbox.

Gearbox Reference Sector

Gearbox Reference Sector

£29.95 GBP (ex vat)

GBOXRS

Gearbox reference sector to suit all 105 gearboxes. 5 required per gearbox.

Synchro Brake Strap 2/3/4/5 Gear - Pair

Synchro Brake Strap 2/3/4/5 Gear - Pair

£50.00 GBP (ex vat)

STRP2TO5

Premium quality Alfaholics production. Internal synchro strap for 2nd, 3rd, 4th & 5th gear, 2 required per gear. We have made these to replace the often damaged parts found fitted inside the synchro assemblies. Typically these just get reused each time the gearboxes get rebuilt, but they are now getting to an age where these are simply damaged and will not allow the synchro to operate as it should.

Alfaholics Race Selector Rod For 3rd/4th Gear

Alfaholics Race Selector Rod For 3rd/4th Gear

£275.00 GBP (ex vat)

SROD34L

3rd/4th gear selector rod is an inherently weak part in the gearbox, the narrow width required as part of the gearbox design means that the clevis where the gear linkage drops into can easily get bent from ‘over-selecting’ gears. This risks a shift not fully selecting a gear and resultant massive gearbox damage. We have re-designed the part with greater radiuses and increased material thickness at the weak points and manufactured them from billet motorsport grade steel to make the part more resilient to this ‘over-selection’ based driver damage.

Alfaholics GTA-R Steel Selector Fork Set

Alfaholics GTA-R Steel Selector Fork Set

£975.00 GBP (ex vat)

SRSFSET

Worn/damaged selector forks are becoming a bigger and bigger issue with Alfa gearboxes as they get older and increased performance & race use is highlighting the inherent design weaknesses of the standard parts. We have redesigned and manufactured these race quality forks by combining our considerable experience of high performance & motorsport use along with general modern motorsport knowledge to produce the ultimate selector fork set of 105/115 series gearboxes. We have added an additional pressure pad to control the synchro sleeve angle more accurately and to increase the total pad area and thus reduce pad wear rate, the net result is a sweeter and faster shift action. These forks are made of motorsport grade steel, so are also more resilient to abuse from over selecting than the factory bronze parts. As developed for and being used in our latest GTA-R builds.

Gearbox Detent Spring

Gearbox Detent Spring

£5.00 GBP (ex vat)

GRBDS

Gearbox detent springs to suit all 105 series gearboxes. Priced individually, 3 required per car.

Input shaft bearing - Early

Input shaft bearing - Early

£60.00 GBP (ex vat)

GRB005

Input shaft bearing 101.00.13.223.00, early type retained by circlip

Input shaft bearing - late

Input shaft bearing - late

£74.00 GBP (ex vat)

GRB006

Input shaft bearing 105.12.13.223.00,  late type retained by nut

Input shaft needle roller

Input shaft needle roller

£7.95 GBP (ex vat)

GRB007

Fits in end of input shaft

Layshaft front bearing - Early

Layshaft front bearing - Early

£43.00 GBP (ex vat)

GRB008

For 1300/1600/1750 - 101.00.13.224.00, 25mm centre bore

Layshaft front bearing - Late

Layshaft front bearing - Late

£55.00 GBP (ex vat)

GRB009

2000 version with 20mm centre bore - 105.12.13.224.00

Layshaft middle bearing

Layshaft middle bearing

£35.40 GBP (ex vat)

GRB010

105.12.13.224.00

Layshaft rear bearing

Layshaft rear bearing

£36.00 GBP (ex vat)

GRB011

...

Mainshaft front - early

Mainshaft front - early

£60.00 GBP (ex vat)

GRB005

For 1300/1600/1750 - 101.00.13.223.00

Mainshaft front bearing - late

Mainshaft front bearing - late

£74.00 GBP (ex vat)

GRB014

2000 version or above - 105.12.13.223.00

Mainshaft Rear Bearing

Mainshaft Rear Bearing

£29.50 GBP (ex vat)

GRB016

105.12.13.910.00

5th gear needle roller

5th gear needle roller

£12.95 GBP (ex vat)

GRB017

...

Gear Bearing Sleeve

Gear Bearing Sleeve

£15.00 GBP (ex vat)

GRB017/1

Bronze inner bush for gears

Front bellhousing oil seal - cable clutch

Front bellhousing oil seal - cable clutch

£4.50 GBP (ex vat)

GRB018

...

Rear gearbox oil seal - cable and hydraulic

Rear gearbox oil seal - cable and hydraulic

£3.75 GBP (ex vat)

GRB020

...

Gearbox Rear Mount - Late

Gearbox Rear Mount - Late

£12.00 GBP (ex vat)

GRB024

Later softer version

Gearbox rear mount - early

Gearbox rear mount - early

£32.00 GBP (ex vat)

GRB024/1

Correct more solid bush for early cars 1964-1967. Can also be used as heavy duty item for late 105 and competition cars

Transmission Cover Main Seal

Transmission Cover Main Seal

£30.00 GBP (ex vat)

GRB023/1

Fits over tunnel before steel pressed top hat gets screwed on.

Gearstick rubber gaiter - inner

Gearstick rubber gaiter - inner

£7.95 GBP (ex vat)

GRB021

Gearstick rubber gaiter - inner

Gearstick rubber gaiter - middle

Gearstick rubber gaiter - middle

£14.00 GBP (ex vat)

GRB022

Fits over the steel top hat that bolts to the transmission tunnel

Clamp For Gearshift Rubber

Clamp For Gearshift Rubber

£3.50 GBP (ex vat)

GRB120

Clamp for gearshift rubber gaiter-correct size to fit inner gaiter to the gearbox top.

Gearstick rubber gaiter - combined type

Gearstick rubber gaiter - combined type

£16.95 GBP (ex vat)

GRB023

Combined version of above 2 gaiters - for use on cars with metal collar integrated into transmission tunnel

Push Down Gear Lever Ball Bearing

Push Down Gear Lever Ball Bearing

£2.49 GBP (ex vat)

GRB002

Ball bearing for cars with a push down gear lever. Two needed per car.

Gearlever rubber seal

Gearlever rubber seal

£3.25 GBP (ex vat)

GRB020/1

Fits under gear lever to seal the gearbox and stop the gearbox top washers rattling!

Gearlever Metal Washer

Gearlever Metal Washer

£3.75 GBP (ex vat)

GRB020/2

Fits under gear lever.

Gearbox Rear Nut

Gearbox Rear Nut

£10.50 GBP (ex vat)

GRB016/1

Replacement gearbox layshaft and main shaft end 'stake' nut to fit gearboxes used from 1972 onwards. Due to gearbox interchangeability, you will need to check if your gearbox has a stake nut like this or a tab washer and regular nut.

Reverse light Switch - Early

Reverse light Switch - Early

£28.00 GBP (ex vat)

GRB025

For gearboxes with reverse light mounted int top of bellhousing via bracket, bell housing will have oval hole where selectror rods poke through. (1963-1974 approx)

Reverse Light Switch - Late

Reverse Light Switch - Late

£12.00 GBP (ex vat)

GRB025/1

For car with reverse light that screws into end of bellhousing - no oval hole for selector rods to poke through. (1974-1993)

Transmission Drain & Fill Plug

Transmission Drain & Fill Plug

£14.95 GBP (ex vat)

SUMP-DF

Transmission drain & fill plug (Allen head type) as used in the Alfaholics workshop.

Transmission Sump Plug

Transmission Sump Plug

£10.00 GBP (ex vat)

SUMPL1

Magnetic oil filler sump plug.

Gearbox Oil Warning Sticker

Gearbox Oil Warning Sticker

£4.95 GBP (ex vat)

STK001

Alfaholics production, original style oil warning sticker.

Alfaholics Rear Propshaft Section

Alfaholics Rear Propshaft Section

£395.00 GBP (ex vat)

GRB102/1

Exclusively manufactured for Alfaholics to exacting tolerances. Most rear propshafts have had many UJ changes in their life and as a result can often have damaged UJ housings, this means that even with new UJs vibrations can still occur due to end float in the UJ housings which is beyond shimming out. The sliding joint is also another area for wear on an original unit that of course cannot ever be repaired. As a result of these 2 major factors we no longer use rebuilt rear propshafts in our workshop, fitting only our brand new unit for 100% perfect results...

Propshaft Bush

Propshaft Bush

£36.00 GBP (ex vat)

GRB110

Steel Bush for front of propshaft to centre propshaft inside doughnut.

Propshaft Top Hat Nylon Bush

Propshaft Top Hat Nylon Bush

£5.20 GBP (ex vat)

GRB110/1

Small nylon plug that fits inside the 'top hat' bush that fits into the front of the propshaft and receives the output shaft from the gearbox.

Propshaft Front Rubber Seal

Propshaft Front Rubber Seal

£4.95 GBP (ex vat)

GRB111

Fits onto end of gearbox output shaft to keep dirt out of the front bush.

Propshaft universal joint - late

Propshaft universal joint - late

£14.00 GBP (ex vat)

GRB101

For cars with late propshaft centre supports - 1968-93

Propshaft universal joint - early

Propshaft universal joint - early

£32.00 GBP (ex vat)

GRB102

Early version with grease nipple (1964-67)

Propshaft centre support - early

Propshaft centre support - early

£16.00 GBP (ex vat)

GRB103

For cars 1964-1967

Propshaft Centre Support - Heavy Duty

Propshaft Centre Support - Heavy Duty

£49.95 GBP (ex vat)

GRB105

Heavy duty version of late support, ideal for trackday and race cars

Propshaft centre support - Late

Propshaft centre support - Late

£25.00 GBP (ex vat)

GRB104

For all cars 1968-1993

Propshaft centre support bearing

Propshaft centre support bearing

£21.00 GBP (ex vat)

GRB106/1

For all centre supports

Propshaft centre support bearing - premium

Propshaft centre support bearing - premium

£21.00 GBP (ex vat)

GRB106/1

Premium quality version of the propshaft centre bearing, ideal for fast road and competition cars.

Propshaft Centre Bearing Snap Ring

Propshaft Centre Bearing Snap Ring

£1.50 GBP (ex vat)

GRB106/2

Propshaft centre bearing retaining circlip. Used on all 105 series cars as well as 750 & 101 Series. We recommend replacing the circlip when you fit a new centre bearing.

Propshaft front coupling - Doughnut

Propshaft front coupling - Doughnut

£28.00 GBP (ex vat)

GRB107

Standard version

Propshaft front coupling - Doughnut - Heavy Duty

Propshaft front coupling - Doughnut - Heavy Duty

£45.00 GBP (ex vat)

GRB107/1

Heavy duty version for fast road and trackday cars. For race cars see our race propshaft cnversion under Race & Performance 'Transmission' section

Propshaft to axle nut - 9mm

Propshaft to axle nut - 9mm

£1.95 GBP (ex vat)

GRB108

Propshaft to axle nut for 2000 cars

Propshaft to axle bolt - 9mm

Propshaft to axle bolt - 9mm

£3.95 GBP (ex vat)

GRB109

Propshaft to axle bolt for 2000 cars

Propshaft To Axle Nut - 8mm

Propshaft To Axle Nut - 8mm

£1.95 GBP (ex vat)

GRB108/8M

8mm nut for the propshaft to axle.

Propshaft to axle bolt – 8mm

Propshaft to axle bolt – 8mm

£3.95 GBP (ex vat)

GRB109/8M

...

Full Rebuilt Kit for non-LSD type ‘Small’ Axle

Full Rebuilt Kit for non-LSD type ‘Small’ Axle

£265.00 GBP (ex vat)

GRB200A

Full kit of best quality pinion and diff case bearings, pinion oil seal, diff sump gasket, rear wheel bearings and halfshaft oil seals. To fit all non-LSD axles (Sprint GT/GT Junior & 1750 - 25 spline halfshafts). Late model cars have press on shrink rings rather than screw on shrink rings, please check on post 1973 cars and order shrink rings separately if required.

Full Rebuild Kit for LSD type ‘Large’ Axle

Full Rebuild Kit for LSD type ‘Large’ Axle

£195.00 GBP (ex vat)

GRB200

Full kit of best quality pinion and diff case bearings, pinion oil seal, diff sump gasket, rear wheel bearings, press on shrink rings and halfshaft oil seals. To fit all larger type LSD axles (2000 GTV, Spider and Berlina - 27 spine halfshafts)

105 LSD Slip Plates

105 LSD Slip Plates

£55.00 GBP (ex vat)

RCE6011

Increase the limited slip action on your Alfa ZF type limited slip by fitting these extra slip plates in LSD unit. Fitted in pairs, to replace a pair of standard spacer plates.

Differential Tab Washer - Left

Differential Tab Washer - Left

£3.75 GBP (ex vat)

TAB/DIFFL

Differential tab washer left side. Three required per car. Priced individually.

Differential Tab Washer - Right

Differential Tab Washer - Right

£2.75 GBP (ex vat)

TAB/DIFFR

Right hand differential tab washer. Four required per car. Priced individually.

Differential Pinion Preload Shims

Differential Pinion Preload Shims

£9.95 GBP (ex vat)

16LSDS

When assembling a differential you will need to set both the pinion height (please see Pinion Height Shims listing) and the pinion preload using shims. These Alfaholics production pinion preload shims are manufactured from high grade carbon steel by an aircraft industry approved manufacturer. These shims are used by ourselves in all of our race and high performance road differential builds.

Differential pinion oil seal 1300-1750

Differential pinion oil seal 1300-1750

£3.75 GBP (ex vat)

GRB201

For 1300,1600 & 1750 non- LSD axles

Differential pinion oil seal 2000

Differential pinion oil seal 2000

£3.95 GBP (ex vat)

GRB202

For all 2000 LSD axles

Pinion Bearing - Front 1300/1750

Pinion Bearing - Front 1300/1750

£69.95 GBP (ex vat)

GRB203

For 1300,1600 & 1750 non- LSD axles - GRB 203 (Premium brand pinion bearing)

Pinion Bearing - Front 2000

Pinion Bearing - Front 2000

£29.00 GBP (ex vat)

GRB204

For all 2000 LSD axles - GRB 204

Pinion Bearing - Rear 1300/1750

Pinion Bearing - Rear 1300/1750

£69.95 GBP (ex vat)

GRB205

For 1300,1600 & 1750 non LSD axles - GRB 205 (Premium Brand rear pinion bearing)

Pinion Bearing - Rear 2000

Pinion Bearing - Rear 2000

£38.50 GBP (ex vat)

GRB206

All all 2000 LSD axles - GRB 206

Diff Case Bearing 1300-1750

Diff Case Bearing 1300-1750

£55.00 GBP (ex vat)

GRB207

For 1300,1600 & 1750 non LSD axles - GRB 207 (Premium brand diff case bearing)

Diff Case Bearing 2000

Diff Case Bearing 2000

£27.00 GBP (ex vat)

GRB208

For all 2000 LSD axles - GRB 208

Diff sump gasket

Diff sump gasket

£5.00 GBP (ex vat)

SUMP1

...

Shrink Ring

Shrink Ring

£8.00 GBP (ex vat)

GRB209

For all LSD axles and late GTJ axles - GRB 209

Differential Pinion Nut Tab Washer 1300-1750

Differential Pinion Nut Tab Washer 1300-1750

£3.95 GBP (ex vat)

PTW/13/17

Differential tab washer to suit all small type 105 series axles.  

Diff Pinion Nut

Diff Pinion Nut

£12.95 GBP (ex vat)

GRB208/3

Differential pinion nut to suit both small (1300/1600/1750) & large (2000) axles.

Halfshaft Oil Seal 1300/1750

Halfshaft Oil Seal 1300/1750

£3.25 GBP (ex vat)

GRB210

Halfshaft Oil Seal for 1300,1600,1750 - GRB 210

Halfshaft Oil Seal 2000

Halfshaft Oil Seal 2000

£3.25 GBP (ex vat)

GRB211

Halfshaft Oil Seal for 2000 LSD axles, also for late GTJ rear axles which have press on shrink rings - GRB 211

Rear Wheel Bearing

Rear Wheel Bearing

£13.75 GBP (ex vat)

GRB212

Standard - GRB 212

Tab Washer For Rear Wheel Bearing Lock Nut – Early

Tab Washer For Rear Wheel Bearing Lock Nut – Early

£4.25 GBP (ex vat)

GRB209/1

Replacement tab washer to suit 105 series cars with screw-on wheel bearing retaining nuts.

Rear Wheel Bearing - Premium

Rear Wheel Bearing - Premium

£28.00 GBP (ex vat)

GRB212/1

Premium quality bearing version, much tigher tolerances for reduced 'pad knock back'.

Rear Wheel Bearing Kit

Rear Wheel Bearing Kit

£22.00 GBP (ex vat)

GRB213

Standard quality kit; bearing, oil seal & shrink ring GRB 213

Rear axle brass brake union

Rear axle brass brake union

£20.00 GBP (ex vat)

BRK043

Rear axle brass brake union

Crownwheel & Pinion Sets

Crownwheel & Pinion Sets

£895.00 GBP (ex vat)

RCE6012

Many different ratios available from stock

Dunlop Rear Slave Cylinder Axle Brackets

Dunlop Rear Slave Cylinder Axle Brackets

£45.00 GBP (ex vat)

BRK100

Premium quality Alfaholics production. These brackets are direct copies of the original brackets welded to Dunlop axle tubes to mount the Dunlop slave cylinder to actuate the mechanical Dunlop caliper. Lazer cut and jig bent ready to weld to your axle tubes. Use these in conjunction with our 'Dunlop Rear Caliper Mounting Brackets' to convert any axle to Dunlop rear brake fitment.

Millers CRX LS 75W140 NT +

Millers CRX LS 75W140 NT +

£19.95 GBP (ex vat)

ENG3010/1

Heavy duty LSD oil with shock protection additives to protect LSD internals. Also suitable for dog ring selection gearboxes. As used in all Alfaholics GTA-R and race cars

Millers CRX 75W90 NT +

Millers CRX 75W90 NT +

£19.95 GBP (ex vat)

ENG3011/1

Very high quality fully synthetic gear oil. Superb track day and race gearbox oil. Unrivaled shift speed, excellent synchro life. As used in Max's GTA-R. 1-litre tub.

cat_standard_parts cat_std_parts_105_all cat_race_parts cat_race_parts_750 cat_race_parts_105 cat_transmission filter_book_mechanical_main filter_book_mechanical_gearbox_internal filter_transmission_gearbox filter_transmission_synchromesh filter_transmission_gearbox_bearings cat_std_parts_105_spider cat_race_parts_gta cat_race_parts_gta_r filter_transmission_gears_selectors filter_transmission_gearbox_mounts_seals filter_book_mechanical_gearbox_external filter_book_mechanical_rear_axle_external filter_transmission_axle filter_stickers filter_book_mechanical_propshaft filter_transmission_propshaft filter_book_mechanical_rear_axle_internals filter_transmission_axle_bearings filter_transmission_crownwheel_pinions_lsd filter_transmission_axle_seals filter_book_mechanical_gaskets filter_transmission_halfshaft_wheel_bearings filter_steering_bearings filter_book_mechanical_steering_system cat_brakes filter_book_mechanical_break_hydraulics filter_brake_hoses_cables cat_std_parts_giulietta filter_book_mechanical_front_brakes filter_book_mechanical_rear_brakes filter_brake_hydraulics filter_oils_axle filter_transmission_oil filter_oils_gearbox