GEARBOX 4SYNC REBUILD KIT INC DIFF PRE A PLUS 14MM...
MSG21

£330.58 exc vat

£396.70 inc vat

In stockIn stock
Full rebuild kit with diferential parts with competition layshaft.

Using only the original manufacturers of the bearings such as RHP because all the Budget bearings are not good enough for longevity or performance use.

This is a f...

£330.58 exc vat

£396.70 inc vat

In stockIn stock

Recommended usage 1 x MSG21 to fit one mini.
Final drive ratios and Five Speed Gearbox - Qty 1

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Kit contained products

Standard replacement precision ground upgraded material standard diff pin. Recommended for all standard differential rebuilds. For performance, use C-BTA164 moly coated pin with standard planet gears. Pay special attention to the conditi...

Genuine Rover are now 48 thou thick which is so tight they can lock up your differential. The originals were .035 thou. These are machined down to be exactly the correct size required but we also stock oversize 43 thou type which are available as [li...

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.

See 13H2934MS for original silicon type best seal available, which is Mini Spares own copy of the original Gaco seal that was discontinued. These were the seals used on production/rally /race cars that never gave problems.

This ...

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

Planet gears for the differential are now manufactured by us as the genuine Rover product is obsolete. Beware of others on the market which must be checked before fitting as the overall dimensions in height seem to vary along with inferior/wrong mate...

When in doubt replace it. You have heard this many times but you better believe it on this part. If you have not personally just replaced these layshaft bearing then do it now while you have the chance. These bearing will destroy the inside of a very...

Bearing 26.9mm wide to take 19.05mm idler gear shaft that fits in the gearbox case and clutch housing case on 4 synchro gearboxes until introduction of A plus when a larger bearing was fitted.

Mini Spares own Gearbox gasket set for all manual Mini transmissions. It does not include the clutch oil seal 13H2934 or output shaft seals ADU5738 or 13H577 selector shaft seal for pre rod change gearbox becaus...

Minispares were the first company to produce these layshafts for performance engine/gearboxes as the standard type would flex and result in the breakage of the bearings causing seizure. Produced in an upgraded material and heat treated to the correct...

The bronze washer for the planet gears in the differential for pre A plus gearbxes. You can use the DAM5071 and cut the lips off.

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...

This little roller bearing goes inside the end of the 1st motion shaft on minis with 14mm mainshaft which it sits on.

This bearing was previously part number 88G409 and a true Rover replacement, but if you have earlier A type gears with the...

Genuine 1ST Motion shaft SINGLE track original bearing for 4 synchromesh 1st motion shaft.

This is a Genuine RHP bearing, and should not be confused with cheap alternatives. The cheap aftermarket bearings often fail and the work involved to...

Mini Spares genuine part, made for reliability, because the current Rover 22G2033version is not good enough. These specials are CNC grooved for correct shape and machined for concentricity using the original type fixings to get the corr...

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Upgraded Viton version of ADU5738. Drive shaft oil seal or diff output shaft oil seal for all Mini's except Cooper S and early Automatics. 2 required per gearbox.

For all rod change gearbox mechanism housings, this as un uprated poly bush replacement for the standard rubber bonded mount

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Left hand differential lock tab as used on rod change boxes up until 1982 when they were not longer used. For R/H locktab see 22A962

Right hand differential lock tab as used on rod change boxes up until 1982 when they were not longer used.

Mini Spares best quality complete gasket and seal kit for engine block and gearbox,for all common engine types and sizes.



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Extra strong magnetic sump plug. This high quality plug is constructed from 303 stainless steel and houses the latest Neodymium magnet which is currently the strongest available to give the best protection for your engine, even more important when yo...

Complete bolt kit to bolt the transfer case and clutch cover onto the engine block.

Originally developed by Rover to cut down on warranty hourly costs on powertrain warranty repairs, by their main dealers.-Labour time allowed at Rover dealers for fitting this seal was 3.4 hours labour rate.

This is a special rigid seal and ...