Ok will a 700R4 tranny that has a 4.3 l bolted to it . Can I do a direct swap for a 350 SB ? As far as the tranny goes and yeah it is a 4wd too . Comes down to i can finda 350 easier and cheaper than 4.3 l . this is a non Vortec as well . it's an 88 GMC Jimmy .