I took my blazer to the mechanics today as it was leaking prestone on thr drivers side towards the bottom. We lifted it and noticed that the body mount cup was totally rotten and gone. The rad was sitting directly on this metal part or the frame causing it to crack the rad at the bottom were assuming. We cannot locate anywhere else that it would be leaking from. How do i rebuild my mounts ? Cup and bushing are gone.

 

You could always check your local junkyard for a donor truck to cut the cup out of. If you dont want to do that maybe the dealer sells it?