I found out the 2 bolt main 1996 pickup block I bought is cracked.
I bought a 3970010 4-bolt main block this weekend at a swap meet and will be taking it to the machine shop to have them check it out.
My question is, if the crank from the 1996 one-piece rear seal block is good, can I use it with the older style 2-piece rear seal block? I don't have both blocks in my garage to compare. If it won't fit right in, is there an adapter?