Nope, no bolt of 4x4 long travel suspensions for GMT400's.
If you're got very deep pockets, you can have something built that comes close to the Ford Raptor suspension travel. Close, but not quite as much.
The issue is the CV axles. Not long enough to allow suspension travel and stay engaged. The short length results in extreme CV joint angles.
In order to fix that, you would need to center mount a differential, lift or relocate the engine for driveshafts, rotate the transfer case for center drop or source a custom case, create custom length CV axles with something like the porche 930 Cv joints (sand rails use 'em), then design and build a complete new front crossmember cradle and then create a completely custom suspension system (upper and lower A arms, Knuckle/spindles, shocks, springs, etc) right out to the wheels.
You're easily talking $10,000+ if you find one to do the work cheap for you. And then it's going to have horrible suspension action on a street vehicle.
The only other option to get more wheel travel is to make the front end horrendously wide for the CV travel. This still involves A arms, Knuckles/spindles, axles, etc but you avoid the need to move engines, transfer cases, crossmembers, etc. Getting any appreciable travel this way is going to make it nearly impossible to get it street legal, let alone get it to drive decently.
This is why a solid axle conversion at around 5 grand (and that's fairly high end) is so attractive.
IFS can do some amazing things, but it needs to be purpose built from the ground up for long travel.
A 2wd is easier to set up as a pre runner style, as there are a few custom builders out there making suspensions for them. They are still prohibitively expensive though.
here's a custom one:
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That's the kind of thing you're going to find for pre-runner stuff. Not cheap, not bolt on and definitely not street legal. Those boys don't fool around....
The GMT400 IFS is/was built for ride quality in order to sell as many units as possible to people who
think they want trucks when what they
really want is cars....
