chevy on dodge frame

[chevy 5.9]

I have a 1970 chevy i wont to put on a 91 dodge frame with a cummins. Has anyone done this or now of any good build threads?
Any help would be appreciated.

[sir_talk_alot]

http://67-72chevytrucks.com/vboard/s...d.php?t=488712

guy did a cummins swap, dont swap the frame, it will be a horrible night mare. there are many ppl who have swapped cummins in their trucks, i cant remember but i just read a thread of someone on here with a c20 'burb 4x4 with a cummins swap.

[dyrt]

Originally Posted by chevy 5.9

I have a 1970 chevy i wont to put on a 91 dodge frame with a cummins. Has anyone done this or now of any good build threads?
Any help would be appreciated.

There was a thread where someone did this. He ended up cutting the floor and a portion of the back of the cab out of each cab and grafted the Chevy cab onto the dodge floor so he could mount it to the frame. No idea what he had to do to make the bed fit. I don't know the dimensions of the dodge frame but you could always try to weld new perches on the frame to mount the cab but this will probably result in a body lift unless you raise the floor in the cab for frame clearance.
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[chevy 5.9]

The reason for wanting to put it on the dodge frame is it is a 1970 crew cab on a lengthen 1/2 ton suburban frame and it doesn't look very strong.
I am worried i wouldn't hold up to the cummins.

[5150.4.67]

Frame will be strong enough. Box it if it worries you. Swaping in the 5.9 is much much easier than swaping the engine AND chassis....

[rsavage]

I have not done a cummins swap but it will weigh about 1200lbs as opposed to 575 lbs of a small block. If it were me, I would do some frame boxing, heavier springs obviously, and make sure that all suspension and steering components were in top condition.