lowkeyz

i need help on a technical "?" that i cant seem to find the answer to. I had put a new clutch in my 300zx 2 seater N/A and installed a new rear main seal. Before I had got the tran. out i broke just about every ex. man. stud so by this point i was kinda aggravated. I went to pull out the rear main and forgot to check how deep the previous rear main was installed so when i installed my new one needless to say she is leaking after about 1,000 mi. or so i was wondering if anyone knew the install depth of the rear main or somewhere i can get a special tool to drive the new one in at a certain depth. Thanx