Z3 rear diff mount issues
I am currently building a 99 Z3 for the wife. The car was given to me as payment for some work did for the owner. The issue is the car was in a wreck, it was hit on the driver side rear quarter. I found a parts car for cheap and have most of what I need to fix the car. I will be swapping the rear diff assembly from the parts car as the lower control arm on mine was bent. I have both assemblies out and the diff I will be installing at the local BMW shop being inspected before installation.
The big question I have is the diff mount is starting to split. The only place splitting is where the third member bolts to the body, I do not see any other stress cracks in the body. I understand this is a common issue and there are kits out there to reinforce this area. Can anybody suggest a good kit to go with? I've looked at several sites and not found anything as of yet, I think UUC makes one?
The original diff had 3:15 gears in it and the new rear has 4:10 gears since it was an auto. It should make for a fun car to drive when I is done! Thanks in advance for the info.