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Andy4639 · 07-13-2020, 02:04 PM

Jason Vannatta,
is a member on here and is a great guy.
From his F/B page.

I fabbed up a trans hump that is 1" taller than a high hump to get the clearance needed for this 6l90 transmission for this 72 C10. Then I made a small tunnel so the driveshaft yoke would have clearance. After that I made a complete driveshaft tunnel just to put on the website. If your laying frame with a one piece driveshaft you're going to need a driveshaft tunnel. If you're laying frame with a 6l90 you're going to need the trans hump and Yoke tunnel. If you're laying frame with a t56 you'll need the trans hump. I didn't design these to be trimmed to fit. They should drop right in place ready to be welded.
Trans hump $150.00
Yoke tunnel. $50.00
Driveshaft tunnel $125.00
All of my parts and prices are available at my website vannattafabrication.com

07-13-2020, 02:04 PM	#5
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Re: Aftermarket high hump replacement? Jason Vannatta, is a member on here and is a great guy. From his F/B page. I fabbed up a trans hump that is 1" taller than a high hump to get the clearance needed for this 6l90 transmission for this 72 C10. Then I made a small tunnel so the driveshaft yoke would have clearance. After that I made a complete driveshaft tunnel just to put on the website. If your laying frame with a one piece driveshaft you're going to need a driveshaft tunnel. If you're laying frame with a 6l90 you're going to need the trans hump and Yoke tunnel. If you're laying frame with a t56 you'll need the trans hump. I didn't design these to be trimmed to fit. They should drop right in place ready to be welded. Trans hump $150.00 Yoke tunnel. $50.00 Driveshaft tunnel $125.00 All of my parts and prices are available at my website vannattafabrication.com Attached Images __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.