Differential

Super-duty ARP bolt to attach the crown wheel to the differential cage. Sold each.

Large bearing as used to support the differential in all classic Mini models. Ref: AHU1856E, AHU1856.

OE diff carrier bearing for high-performance transmissions; made by RHP. Ref: AHU1856, AHU1856-RHP.

Special bolt to fasten 8.4'' brake rotor (12'' wheel cars) to 21A2695 drive flange. Ref: BTA370, BTA0370.

High-tensile shouldered bolt for holding the final drive (''crown'') wheel to the differential housing.

Coarse-thread bolt for Cooper remote housing to attach it to the rear of the differential. Use two (2) per car.

Bushing found in all diff cages and in the center of standard crown wheels. Ref: ATA7378.

This bushing supports the output shaft, and if worn will contribute to oil leakage; fits pot-joint and yoke-type differential side covers. Ref: 2A3538.

This bushing supports the Hardy-Spicer output shaft, and if worn will contribute to oil leakage. Honing required to obtain exact final clearance.

Half-moon collet, locates the end of the output shaft into the Hardy Spicer drive flange, under the rubber seal. Used on early automatics and Cooper S, two (2) required per flange.

Heavy-duty differential recommended for any high performance road-driven classic Mini or Mini Cooper. Ref: C-AJJ3385.

Circlip to retain the diff output shafts used with an LSD. Ref: CCN122, CCN0122.

Washer fitted next to the inner circlip to retain the diff output shaft when an LSD is fitted; for use with Cooper S output shafts. Ref: C-BTA1243.

Set includes two specially-bushed planet gears, thrust washers, uprated differential pin and roll pin. Ref: C-BTA167, 2A7062, DAM5071, DAM6624, DAM6027.

The pin through the center of the diff is often ignored, but should be replaced at rebuild time. Ref: C-BTA166, C-BTA0166.

Standard differentials use two (2) of these pinion (planet) gears. Good-quality reproduction; sold each.

If you want to install flange- type differential output shafts, such as used with Hardy-Spicer drive shaft couplings or with a Limited Slip Differential (LSD) in a rod change gearbox,

Differential side cover with bushing installed. Fits Minis 1959-73, but can also be used on left side of rod-change transmission with yoke outputs or pot joint. Ref: CHM85, CHM0085.

Revised cupped thrust washer used after 1980, identifiable by a locking ear that keeps the washer from spinning and wearing into the diff cage. Ref: DAM5071.

Cupped thrust washer as used on all classic Mini differentials to 1980. Ref: 2A7062.

If you are installing an LSD, other than the Swift ATB one, into a gearbox to be equipped with ''pot joints'' (inboard CV joints), you will need two of these.

The large-diameter fiber thrust washer for the output shafts on all standard classic Mini differentials. Ref: BTA101, BTA0101.

Pin locks the main pinion pin to the differential cage. Ref: RPS1418.

Shimming used so the differential bearings to achieve proper preload; .006'' thick. Ref: DAM3108.

Shim used with the differential bearings for proper preload; .010'' thick. Ref: DAM3109.

Used to shim the diff to obtain proper bearing preload; .020'' thick. Ref: DAM3633.

Used bare drive shafts to accept inner CV joints, typically needed when converting to 1973-on pot joint transmission. Ref: 22A1960, 22A1961, SEVU002, SEVU002R, SEVU002L.

2.95 crown wheel and pinion set; reduces your RPM at a given speed, so will allow quieter and more economical highway driving. 20/59 tooth count

You can reduce engine RPM by about 10% or more at any road speed by changing to this final drive, which must be installed on the differential.

Final drive ring and pinion gears with 3.2 ratio. Tooth count is 19/61.

Ring and pinion final drive gears as used on the classic Mini Cooper S and many 998cc Minis from 1970-on.

Competition-quality 3.7:1 ratio final drive ring and pinion gears to fit limited-slip differential (LSD).

3.7 final drive ratio, semi-helical for maximum strength; available to fit standard or LSD-type differentials.

Ring and pinion final drive gears, tooth count 17/64, 3.76 ratio. Used condition, but supplied as a matched set.

The 3.9 is a good all-around final drive ratio for the Vintage racer. These are semi-helical for maximum strength and superbly manufactured by Quaife, one of the UK's leading transmission manufacturers.

Special Swiftune-developed differential output shafts to match Hardy-Spicer drive shaft couplings. New materials and technology allow this shaft to fit the standard smaller diameter diff side cover.

Thin paper gasket between the gear case and the differential housing. Lower section only, fits pre-rod change models. Ref: 2A3506, 2A3506B.

Thin paper gasket between the gear case and the diff housing; upper section only. Ref: 2A3505, 2A3505B, GUG705709GM.

Gasket for the classic Mini's differential side cover. Ref: 22A1611, GUG705567GM.

The differential side cover for the automatic is slightly different from 4-speeds, so a different gasket is needed. Sold each.

Thin paper gasket between the gear case and the diff housing. Lower section, fits rod change only. Ref: 22G1836, GUG705642GM.

This version of the side cover gasket comes with built-in sealant attached to the paper. Ref: TRK10004B, GUG705567GM.

These flanges are used to convert from pot joint output shafts to Hardy Spicer flange type, snapping in place just like the inner CV joints, and fit the smaller, standard diff side covers.

Superior race-quality bolts for the Hardy-Spicer differential output flange. A track-tested product! Sold per set/8.

An updated and advanced version of the old popular Salisbury clutch-type limited slip differential. Ref: C-AJJ3387, C-BTA1106.

Now a limited slip diff that is ideal for FWD cars! The all-gear mechanism of the Quaife ATB eliminates the grabby behavior of earlier plate and pawl diffs, and reduces

Output shaft for Tran-X and Salisbury Limited Slip Differentials. Hardy Spicer coupling. Sold each.

Metal locktab to retain the six bolts that attach the crown wheel to the differential. Ref: ATA7385.