Lost all gear oil today, 1991 Testarossa

so those in the diff? I never had one of those broken or damaged

 

jamie, I think as long as those gears are not damaged you not have to change them. ask newman what he thinks. he has much experience and knows. but I think he sells his diff without internals so it is no need to change.

 

https://www.hillengineering.co.uk/index.php?route=product/category&path=98_158

 

Mine were different both sides, as were the races. Drive both bearings off and check your races before you order.

 

Heat with a torch, race side down. Mine fell out after just a minute of warming. The races are different on each side too. I’ve got my part numbers but as Newman said, best to check your actual ones.


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Yes with an acetylene torch. Propane may not cut it and Ive never done it in an oven. Heat that area unit the bearing falls out. Have the new bearing waiting, give everything a quick wipe and drop new bearing cup in. Then let it air cool bearing facing up and maybe set a roller bearing in it to add weight so the cup is fully seated as it cools. If the housing is hot to the touch it may not fit in the gearbox and you may get an inaccurate reading on your preload. I make sure its all the same temperature when I set it up.

 

I heat them with the bearing facing up because its easier, when it starts to smell like burned oil I pick it up with a rag and turn it upside down and see if the cup falls out.

 

I sent him my machined race so hopefully he can fit spacers in and out. Maybe a good idea to just let it cool, and then he can fit the machined race in and out. That step really helped me out (book says to have a spare one and machine it...both are things most folks don't have lying around, right?!).

 

Impressive work. I really enjoy watching your progress.

 

have them waterjet or fiber laser cut then surface ground to the spec you need. Do you have a relationship with a local machinist? Its a reasonably straight forward job for a machinist

 

If I remember correctly, one side only has shims under the race. Someone on this forum posted that Mopar diff shims work?