Differential Mounts, Diff Stub Shafts, LSD Additive & Gear Oil
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| Differential Mounts | ||
| Front (86-92 All) | 28-9800-FC01 (1 per car) |
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| Front (86-92
All) (Competition - does not have weight/block on front, and rubber is stiffer) |
28-6800-FCY1 (1 per car) |
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| Rear (86-92 All) | 28-890C-FB01 (2 needed per car) |
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| 86-92 Rear
Competition Much stiffer rubber, looks identical |
28-8900-FBY1 (2 needed per car) |
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| 93-95 Complete with bushings (1 per car) | 39-730A-FD01 | ![]() |
| 93-95 Bushing
Only 2 needed per car |
28-890A-FD01 | ![]() |
| 93-95
Competition Bushing 2 needed per car |
28-8900-F128 | |
| 86-92 CV Joint Boot Kit | ||
| Outer (Non Turbo) | 22-530A-M030 | ![]() |
| Inner (Non Turbo) | 22-540A-M030 | |
| Outer (Turbo) | 22-530B-M040 | |
| Inner (Turbo) | 22-540A-M040 | |
| Turbo Diff Stub Shafts | ||
| 87 Turbo (-608385) | 27-270A-P016 | ![]() |
| 87-88 Turbo (608385+) | 27-270B-P019 | |
| 89-92 Turbo Left (Short) | 27-280B-P094 | |
| 89-92 Turbo Right (Long) | 27-270A-P094 | |
| Limited Slip Additive Part #ADDITIVE If you get a "chatter" from the rear axle when starting from a stop, and turning at the same time, you need to add this additive to your rear end oil. This is due to the clutches in the diff. locking and un-locking. The Limited Slip Additive assists with the applying and releasing of the clutch plates. One container/part number needed per rear end oil change. |
| Kaaz Gear Oil | ![]() |
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| Kaaz recommends using ONLY their gear oil in their LSDs. Using synthetic oil will destroy your diff. | ||
| Part Number (per 2.0 Liters) | GL-5/80W-90 | |
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Synthetic Transmission and Differential Oil |
| We have had very good results using NEO synthetic 75-90 in the transmission and differentials in our service department. | |
| Part Number (per quart) ...... NEO-GEAR |
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Idemitsu Racing Gear Oil | |
| Quart IDE-75W-90 | 12qt Case IDE-75W-90-CS | |
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