£1,333.68 exc vat
£1,600.42 inc vat
Special order
Mini Spares are proud to offer a new range of straight cut, 4-speed rod change gearboxes.
These gearboxes undergo a full rebuild, using new; bearings, seals and gaskets. As well as being equipped with the Evolution Clubman Gear Set C-STN39, competition steel baulk rings C-22A1741, central oil pick-up pipe C-AHT54 and Mini Spares X-Pin differential C-AJJ3385.
The Evolution Clubman gear set provides the following ratios;
1st 2.583
2nd 1.711
3rd 1.250
4th 1.0
These 4 speed gearboxes are not supplied with a speedo worm and pinion, this will have to be transferred from your original gearbox. They're supplied with a 6 month part guarantee, with no labour guarantee.
All core units for exchange must be fully serviceable, complete A+ units, without damage to the case, namely, idler gear face and sump plug threads, if your old unit is not serviceable you will incur a £400.00+VAT surcharge.
Does not come with input gear supplied.
£1,333.68 exc vat
£1,600.42 inc vat
Special orderRecommended usage 1 x MSG42 to fit one mini.
Gearbox gasket for the large alloy end cover which also houses the speedo drive pinion for all years of mini. The small gasket on the alloy housing with 2 bolt holes is GUG705564GM and the small pear shaped speedo housing gasket is [link...
Minispares recommend this central oil pick-up be installed with every transmission rebuild.
The original Mini oil pick-up pipe lives in the right hand edge of the gearbox casing, which is okay if you are driving straight. But during a right ...
Gearbox differential pinion locktab to secure it on the mainshaft for all manual gearboxes.
The latest model Mini differential still use thrust washers on the spider gears but now have a tab on one end to prevent them from rotating on the cage side of the diff. The cage of course is cast while the gear itself is much harder and thus the wh...
All differential crownwheels used these locktabs. 3 required and if you need new bolts see ATA7043 (6 of.) All sold singly
Dual use bearing fits the end of the A Plus 18mm mainshaft where the Ist Motion shaft slides on, plus it is used on the A Plus layshaft smaller end.
Knowm as the 18mm bearing it was Rovers upgrade on using larger mainshafts and laygears wit...
Genuine RHP Outer support bearing for the first motion shaft. Comes with bearing and outer race. You MUST REPLACE the outer race when using the new bearing. An easy way to remove the old race is to clean the housing very well, remove the circlip, and...
Pre A plus 4 synchro laygears had 2 of these fitted plus a small bearing whereas the A plus laygear had only one.
This is known as a metalastic type bush as it is metal on the outside and inside with a layer of rubber between. Used on the rear rod change gearbox as a stabiliser bush for the rod change it is also used on our rear anti roll bar kits where appropri...
Genuine RHP bearings. Not cheap Imported rubbish as sold under this part number.
This is the workhorse of the Mini gearbox. This double roller bearing supports the shaft where it transmits the power to the wheels. When this bearing goes, the...
Drive shaft oil seal or diff output shaft oil seal for all Mini's except Cooper S and early Automatics. 2 required per gearbox.
Upgraded version in Viton available us ADU5738VITON
This kit consists of one alloy sleeve with a groove on the outside to locate the O ring, the new "O" ring, a rod seal and a gaiter. To fit the kit simply remove the old gaiter if fitted and then the old oil seal. Fit the sleeve with the "O" ring fitt...
This is the original Evolution"Cross-pin" differential for the Mini.
Produced and sold by Mini Spares since 1994. It is a super heavy duty differential designed as a significant upgrade for reliability and strength to the standard units. Ove...
Straight cut gearset for A+ gearbox's using the standard 1st and reverse gear. UK made -The ultimate for TUNED street cars or clubman events giving nearly the same close ratios as the original 3 synchro straight cut gear set.
Using latest g...
Torrington/Koyo idler gear bearing with special rollers for allowing movement on late type idler gears. The idler gears for twin point cars were also made from clean steel as an upgrade from 1996 on. This special bearing replaces the cheaper inferior...
Gearbox output shaft housing gasket for all minis except auto.
Sold singly 2 required per gearbox.
for the inspection plate on the front cover of the transmission where the speed cable goes to -it has 2 bolt holes cut out
Gearbox oil strainer to gearbox internal case gasket and also used on the C-AHT54 special oil pick up pipe. One also sits on the outer plate held onto the gearbox outer casing by 2 screws.
Genuine RHP as originally fitted to every production Mini.
Two of these main diff carrying bearings are required in the gearbox and this new steel caged type fits either way round. Should be pre loaded by 1-2 thou.
Some original fi...
Mini Spares Performance Baulk ring.
The standard sintered baulk (synchro) rings are not tough enough for the demands of performance useage, in many instances lasting only one race before failure or breakage. The main reason is the incompat...
New Minispares Evolution straight cut crownwheel and pinion set 3.75. The crownwheel in these kits has a 20% wider gear than previously supplied, and a pinion made from aero quality steel making it 20% tougher.16x60 teeth count.
Always Check...
The new improved KAD quickshift is a redesign of the original KAD stick incorporating many detail changes.
* Reverse is now selected by lifting a collar beneath the gear knob.
* Now supplied with an alloy gear knob.
...
Mini Spares own Evolution limited slip diff with over 10 years success
No serious competitor would use a Mini on a race track or autocross course without a limited slip differential should the rules allow it. This original Mini Spares Ev...
Genuine RHP as originally fitted to every production Mini.
Two of these main diff carrying bearings are required in the gearbox and this new steel caged type fits either way round. Should be pre loaded by 1-2 thou.
Some original fi...
Bias spring arrangement fits the shift rod on rod change cars to "bias" the shift lever towards the 3rd gear gate. Used as standard on our 5 speed gearbox to bias the gear changes also. Tightens up all the linkage and makes gear changes feel easier a...
This kit contains 1 each of 3 alternative sizes plus 2 of the standard size shim
for shimming idler gear on A Plus idler gears. These are the later type spec
which rover superseded to when upgrading the idler gear material on inject...
This kit consists of one alloy sleeve with a groove on the outside to locate the O ring, the new "O" ring, a rod seal and a gaiter. To fit the kit simply remove the old gaiter if fitted and then the old oil seal. Fit the sleeve with the "O" ring fitt...
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