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Old 06-28-2021, 11:13 AM   #3
Jackson's Dad 64 C10
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Join Date: May 2018
Location: Mocksville, NC
Posts: 81
Re: 6L80/6L90 swaps - trans tunnel mods?

Quote:
Originally Posted by LS short box View Post
I haven't done a 6L80 but if you have to repair the floor any way no reason not to put in the high hump. I'd bet money it will give you a better drive line angle. If you are putting in new carpet just order the high hump model.
My original plan was just to put in a high hump, and that’s still my first choice, but I’m not sure if that will give me enough clearance. People talk about the 6L transmissions like they are just massive. I guess they are when you compare to a Turbo 350 or even a 400. I’m planning to initially cut out the crappy repair, and go from there. I’ll try to cut as little as I can, until the trans fits, then I can take some measurements and find my options. I am still hoping someone sees this thread and goes “hey, I put a 6L in my truck, here’s what worked for me”. If not, I’ll post back with what I come up with for someone else in the future.
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