Re: engine replacment
I didn't have a problem removing the bell housing bolt on my 91 S10 Blazer 4x4!!! Yes it was tight but nothing a long extension and a swivel can solve!!! Just remove the tranny crossmember and use a jack to lower the rear end of the tranny down. Will give you more room.
1991 S10 Blazer Tahoe 4x4. Edelbrook Headers, Holley 670cfm TBI, K/N filter charger, 30-9.5-15 tires, rebuild worked tranny