The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 02-03-2024, 07:41 PM   #1
SRD art
Registered User
 
Join Date: Sep 2009
Location: St George, Utah
Posts: 95
'77 Suburban Slam- Could use some insight...

Looking for squarebody insight- I'm starting on my '77 Burb project next month, rendering and Photoshop for illustration. I want it to be as low as autocross trucks with aftermarket chassis’, however for now my budget requires I use a factory frame and front cross member. If my estimates are right that should end up about 4-5" of ground clearance under the center frame rails.

Building a different 1/2 ton chassis I already have drop springs and drop spindles and I plan to section the front cross member 1.5”, should be about 7.5” front drop (?). Out back I’ll do a C-notch and axle flip + whatever to end up with a 1” rake.

To me shorter tires look out of proportion against a Burb’s big butt so rolling stock is 275-45-20 on 20x10” wheels with 5.75” BS all around. Engine is a 454 BBC with roughly 425 hp and 550 ft lbs.

Mod/Fab questions- I’ll do different front wheel tubs and a 3 u-joint steering shaft to clear the raised upper arms. Out back I’ll raise the rear wheel tubs about 3” and the floor above the pumpkin 2” or more as needed. My research shows the trans tunnel should be good but I can modify that to be taller too if needed. What other fab work should I anticipate having to do?

Thanks for any insight!
Attached Images
    
__________________
-Ben,
Check out my website!
http://www.streetroddesigns.com
1977 C2500 'Burby w/454
1979 Olds Cutlass Pro Touring wagon "Pumkinator"
1985 GMC S15 Slammed Daily Driver & Autocrosser
SRD art is offline   Reply With Quote
Reply

Bookmarks

Tags
gbs performance, lowered suburban, squarebody suburban


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 12:26 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com