Body drop... cut bottom of frame rather than top?

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jon6foot4

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I haven't picked one up yet, but looking to get a 2dr Tahoe within the next 6-12 months as soon as I knock the last couple of items off a list on my house. So I don't have the vehicle on hand for reference but I've looked at a bunch of pics and threads, and don't why I don't see anyone reinforce the TOP of the frame, then cut the BOTTOM 2" off, rather than reinforce the bottom and cut off the top and lower the entire body, which seems to need a lot more work at hacking up the body.

From the pics I've looked at it seems you could:
- Weld 2x4 into top of frame.
- Cut bottom 2" of factory frame off
- Z the front of the frame a corresponding 2"
- Replace the GMT400 body mount bushings with S10 bushings (to net roughly another an inch of body drop - found this in a thread specifically for Tahoes)
- Move transmission mount up
- Cut and move transmission tunnel up in the cab (maybe the entire driveline hump)
- Small tubs in firewall for front tires

I could be missing steps, or there might be something I'm missing which make this unreasonable.
Just seems like it would be a lot less hacking up a good body to get ~3" drop, particularly on a Tahoe where you're dealing with more than just a pickup cab. The notch cover and tubs in the rear will require some work back there anyhow, but less than a full body drop and a fraction of the cost of a full aftermarket chassis (which doesn't look like it is available for a Tahoe anyhow).
 

jon6foot4

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Good point... either of those two options might make more sense... was thinking to maybe back-half it anyhow since it's probably more sensible than adding notches and a 4 link and some raised cross-members to the existing frame... An SFBD frame accomplish that, the SFBD, and would allow for re-use of the front suspension, etc. I've got plenty of time to work it all out on paper or at least in my head :D

I built a '55 F100 years ago and after all the boxing, custom cross-members, notches, suspension components - I might as well have started a frame from scratch. Would have probably been faster and resulted in an even better frame in the end...
 

fancyTBI

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My friend built a full frame for his ‘53 Chevy P/U. He said it was well worth the effort. If you’ve got some coin, Phat Phabz sells a SFBD frame.

 

jon6foot4

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I saw the Roadster Shop's frame... the cheaper one of the two is around 14k but is for the pickup. That Phat Phabz one looks pretty sweet.
Guess when the time gets closer I'll have to see if that's reasonable to spend that much or just fab my own. I do kinda like the idea of just having it done and ready to go. They'll even shorten and install the rear axle if I get it to them.
Thanks fellas for the food for thought.
 

kdhs10

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What you are describing in pretty much exactly what i did on my last 2 Door. Body drop stuff starts on page 5 of this thread.

 

jon6foot4

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What you are describing in pretty much exactly what i did on my last 2 Door. Body drop stuff starts on page 5 of this thread.

Thanks for linking that... awesome ride. 2 Door Tahoe with air/body drop just can't be beat man.
I'm still looking at around March of 2025 when my bonus drops... plenty of time to weigh these options.
 
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