I’m surprised you didn’t cab, bed, and front clip swap the 71 GMC onto the newer frame and weld custom mounts onto the new frame for the 71 GMC cab. I’m in the process of doing that to my 72 GMC as well, but I’m taking the 72 GMC cab, bed, and front clip and swapping it onto a 2003 2500hd 4x4 chassis with the LQ4 6.0, wish I coulda found a Duramax to swap, but just to expensive in my area lol. Good luck on the build man! I’ll define keeping up with your videos! 🤘🏼
Thank you! It would’ve been nice to cab swap it and not mess with any suspension/drivetrain but I wanted the truck to be a true 71, frame and all. Besides, the duramax frame was all twisted up so that wasn’t even really an option lol that 6.0 will still be sweet! I’ll have to check it out
I'm doing a 1985 c20 to k20 conversion but I'm going ls 408 don't go oem with the front axle go with a driver side drop axle u can use the duramax t case
I was going to use a 05-12 superduty Dana 60. Should fit right and matching gear ratio to duramax in most of them. For now just making it run and drive in 2wd so I don’t get too far ahead of myself
Yeah I fit it in just a couple days ago and realized that. I was hoping I could get away with not doing it. Already have the high hump ordered and doing a slight body lift
Just to let you know Dmax swap will cut down your harness for $600 so to crank it all you need is key hot constant hot and ground. That's the way I'm doing my 91 crew cab
I’m surprised you didn’t cab, bed, and front clip swap the 71 GMC onto the newer frame and weld custom mounts onto the new frame for the 71 GMC cab. I’m in the process of doing that to my 72 GMC as well, but I’m taking the 72 GMC cab, bed, and front clip and swapping it onto a 2003 2500hd 4x4 chassis with the LQ4 6.0, wish I coulda found a Duramax to swap, but just to expensive in my area lol. Good luck on the build man! I’ll define keeping up with your videos! 🤘🏼
Thank you! It would’ve been nice to cab swap it and not mess with any suspension/drivetrain but I wanted the truck to be a true 71, frame and all. Besides, the duramax frame was all twisted up so that wasn’t even really an option lol that 6.0 will still be sweet! I’ll have to check it out
I'm doing a 1985 c20 to k20 conversion but I'm going ls 408 don't go oem with the front axle go with a driver side drop axle u can use the duramax t case
I was going to use a 05-12 superduty Dana 60. Should fit right and matching gear ratio to duramax in most of them. For now just making it run and drive in 2wd so I don’t get too far ahead of myself
I hat to brake it to you but you will need to put in the chevy 4x4 trans hump maybe more because of the gm duramax transmission and transfer case
Yeah I fit it in just a couple days ago and realized that. I was hoping I could get away with not doing it. Already have the high hump ordered and doing a slight body lift
Just to let you know Dmax swap will cut down your harness for $600 so to crank it all you need is key hot constant hot and ground. That's the way I'm doing my 91 crew cab
I’m gonna attempt to do it myself but if that doesn’t pan out I’ll look into that! Thank you!