Wow I hope you can send up more info on the frame sizing as I just picked up my doner 91 chev s15 ext cab it came with a 305 auto mounted & will need extensive work on correcting motor & tranny mounts & yes Im after the AD kit & change over rear axle for my 55 1st series truck so in canada its blast & work on the metal thanks to the winters(salt is a way to melt snow) as you wont have to much of in Texas so here I go with any info available out there appreciated thanks for listening dartin jack