So I haven't been super pleased with the Racing Diffs (RacingDiffs) billet e30 medium case diff cover. Granted this was their first batch of the product, they did advertise that they had done thorough R&D and testing on it.
Fill plug doesn't go in all the way as the hole hasn't been correctly threaded:
Poly bushing hitting the cover:
Brackets to connect to the body were too short. This meant the car wasted time at my mechanic's shop while waiting for Racing Diffs to send out some spacers (not the correct sized bracket):
And finally after it had been installed and given a run, on highway speeds it's pushing a lot of diff fluid out of the breather. After I took this photo my mechanic added a coiled extension to the breather port which has fixed 80% of it, but it's still leaking, so it's back to the shop for more solution finding:
Fill plug doesn't go in all the way as the hole hasn't been correctly threaded:
Poly bushing hitting the cover:
Brackets to connect to the body were too short. This meant the car wasted time at my mechanic's shop while waiting for Racing Diffs to send out some spacers (not the correct sized bracket):
And finally after it had been installed and given a run, on highway speeds it's pushing a lot of diff fluid out of the breather. After I took this photo my mechanic added a coiled extension to the breather port which has fixed 80% of it, but it's still leaking, so it's back to the shop for more solution finding:
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