[RET423]

That Tahoe is easy to shorten, if you look at the frame each side is 3 sections slipped into one another; you just cut the rear sections loose and trim a little, then slide it back together and weld it up.

The steering box is pretty close to where you need it to junction with the 66 shaft, flaming river sells the steering U-Joint that will rejoin the 66 steering shaft after you cut it in a convenient place.

You will have to fabricate the body mount pads and cut the Tahoe mounts off but on the 66 the body mount layout is pretty consist so it's not hard to get everything where it belongs.

The very front and rear will need some fab work to get the bumpers to look right but it is not too bad, getting the fuel filler to the Tahoe tank will be the tricky part, using a Chevy express tank that fits between the rails in the rear is a pretty simple solution but then you have to extend the Tahoe fuel lines to the back.

After that it is just the same challenges as with any. LS swap like getting a gauge cluster to work but there are many options for those challenges.

The Tahoe brakes, handling & ride are absolutely awesome as well as the wheel & tire options, this would be a great rig if you know how to fabricate 👍

 

[RET423]

I have a 4x4 65 El Camino that I built on a 73 chevy C10 frame years ago (not the right way to do it 🤣), I have since done a lot of mods using the 99-06 GMT 800 chassis that are used in the Tahoe, Yukon, Suburban, Escalade, Sierra and Silverado's and the way GM made those chassis universal to all of the models (whether 2wd or 4wd) is really amazing; the SUV version has level frame rails so making a car 4x4 conversion with those is much easier than the way I did it 30 years ago!

I will likely redo mine one of these days with an SUV GMT 800 chassis like the OP has, it would be MUCH lower than what I ended up with using the pickup chassis from the 70's (it looks like a kids rig now, which I thought was cool back when I did it 😁) but I would like to try and see if I can get it looking like it would have looked if a 4x4 was an El Camino option from the factory back in 65.

I have never messed around with the S10 chassis but I understand that they work well for old car chassis conversions as well, if I ever find a good deal on an S10 chassis I will buy it and experiment with that 👍