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Triumph TR7 Rear Axle (4 Speed/Early Auto) |
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Axle Numbers Rear Axle & Ratio Identification
Differentials fitted with Collapsible type Spacer Differentials fitted with Non-Collapsible type Spacer Rear Axle Casing/Halfshafts & Hub
©Rimmer Bros Ltd - Registered in England No. 2155394. VAT No. GB 352 8473 40.
Rear Axle Assembly
Differential Assembly
Rear Axle Casing/Halfshafts & Hub
Where Axle numbers (prefixed CG & CT) are quoted in the 'Rear Axle Assembly' & 'Differential Assembly' Sections (to help identify Factory Specification changes), they relate to the Original units as fitted when the vehicle was new, and not subsequent replacements.
The axles & differentials listed in this section, are as originally fitted by the factory to all 4 speed Manual and all Automatics up to VIN 402000. Axles for vehicles with 4 speed manual gearboxes are prefixed 'CG' (diff ratio 3.63:1), and automatic's are prefixed 'CT' (diff ratio 3.27:1). Original factory replacement Differential units were supplied with either 'collapsible' or 'non collapsible' type spacer. Factory specification changes were made (at axle numbers CG51494 & CT2054) to the diff' carrier & planet gear etc, so if you are considering re-building your own differential, note that early components cannot be interchanged with the later specification parts. However, if replacing the diff' as a complete unit, then either type may be fitted to the axle casing.
4 Speed Manual & Automatic to VIN 402000
Rear Axle Assembly (Reconditioned);
New axle casing with diff' unit, less Halfshafts.
4 Speed Manual (3.63:1) - UKC6761R
Automatic (3.27:1) - UKC6762RNCWP
Automatic (3.27:1) - UKC6762R
Rimmer Bros reconditioned unit fitted with New Crownwheel & Pinion.
Unipart EP90 Gear Oil (0.5 litre) - (NI) -
GGL190
Rear axle capacity - 1.3 Litre.
4 Speed Manual & Automatic to VIN 402000
Differential Assembly;
Ready to bolt to axle case, less gasket 114749.
4 Speed (New) (3.63:1) - TKC2619
Gasket (Housing to axle case) - (NI) -
114749
4 Speed (Recon) (3.63:1) - TKC2619R
Automatic (New) (3.27:1) - TKC2768
Automatic (Recon) (3.27:1) - TKC2768R
Casing/Housing (Front pinion) - 519024
Spacer (4) - 60070
Bolt (4) - 104554
Washer-Spring - GHF333
Bearing (Pinion rear) - 134065
Crownwheel & Pinion (4sp) (3.63:1)
To axle No CG51494 - 159802
Crownwheel & Pinion (Auto) (3.27:1)
Use with collapsible spacer.
From axle No CG51495 - RKC4549
Use with non collapsible spacer.
To axle No CT2054 - UKC6733
Diff' Carrier Assembly (4 Speed);
Use with collapsible spacer.
From axle No CT2055 - DAM4589
Use with non collapsible spacer.
To axle No CG51494 - 21H5478
Diff' Carrier Assembly (Auto);
From axle No CG51495 - RKC1983
To axle No CT2054 - RKC2802
Bolt (8) (Carrier to crownwheel)
From axle No CT2055 - RKC2802
4 Speed - 21H5479
Washer-Spring (8) - 118977
Automatic - 144668
Engineers Adhesive-(Unipart) (Tube) - (NI) -
GAC2093
Use for securing nuts & bolts.
Bearing (Diff' Carrier) (2);
To axle No CG51494 & CT2054 - UKC169
Shim (Bearing) (Use as required);
From axle No CG51495 & CT2055 - UKC4805
(.0092"/.0098") - 154921
Thrust Washer (2) - ATA7039
(.0019"/.0021") - 154925
(.0025"/.0035") - 156082
(.0045"/.0055") - 156083
Gear-Differential (2);
To axle No CG51494 & CT2054 - 134073
Thrust Washer - 134075
From axle No CG51495 & CT2055 - UKC6281
Later gear UKC3281 has 15 teeth.
Cross Shaft/Pin - UKC4493
Pin (Cross shaft/pin);
To axle No CG51494 & CT2054 - 110376
Gear-Differential (2);
From axle No CG51495 & CT2055 - UKC3948
To axle No CG51494 & CT2054 - 134074
From axle No CG51495 & CT2055 - UKC3365
Later gear UKC3365 has 10 teeth.
Spacer (Collapsible) - 156903
Bearing (Front pinion) - 134070
Oil Seal (Front pinion) - DAM5079
Flange-Front Pinion - UKC764
Washer - 142333
Nut (Flange/front pinion) - 159394
Shield (Flange) - UKC725
Spacer (Non-Collapsible) - 145933
Bearing (Front pinion) - 134070
Shim (Bearing) (Use as required);
.030" thickness - 140790
Oil Seal (Front pinion) - DAM5079
.010" thickness - 140791
.005" thickness - 140792
.003" thickness - 140793
Flange-Front Pinion - 153677
Washer - 142333
Nut (Castle headed) (Flange/front pinion) - 112635
Split Pin - PC34
4 Speed Manual & Automatic to VIN 402000
Axle Casing (Bare) - RKC3302
Breather - 21H6060
Washer - GHF302
Seal (Rubber) - WF509
Filler Plug - 22G2115
Stud (8) - 2A7226
Locates differential to axle.
Washer-Spring (8) - GHF332
Nut (8) - GHF201
Gasket - 114749
Halfshaft (2) - TKC558
Woodruf Key (2) - UKC1217
Outer Hub Assembly (2) - UKC1343
Includes studs.
Wheel Stud (8) - UKC2213
Washer (2) - 142333
Nut (Castle headed) - 21A79
Split Pin (2) - PC15
Bolt (8) - ATJ6590
Washer-Spring (8) - GHF332
Nut (8) - GHF201
Rear Hub Bearing Kit (2) - (NI) -
GHK1030
Kit is per WHEEL & includes; 1 of each hub seal GHS181/GHS184, 1 bearing GHB180 & 1 gasket GFG117.
Hub Seal-Inner (2) - GHS181
Bearing (2) - GHB180
Gasket (2) - GFG117
Hub Seal-Outer (2) - GHS184
Housing (2) - UKC1218
Oil Catcher (2) - 104582
Unipart EP90 Gear Oil (0.5 litre) - (NI) -
GGL190
Rear axle capacity - 1.3 Litre.
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and are used with their Licence under the Special 'Heritage' approval Scheme.
All original part numbers & illustrations have been reproduced by kind permission of British Motor Heritage.