6L90 fitment

Atocha · Nov 17, 2019

Search came up with some results. If using the tejas motor mounts and xmember, supposedly you can fit ls/6l80(90) with out rasing/cutting the floor. But I have yet to see some pictures.
Anyone that has some pics, please post them.

Stangetr · Mar 5, 2024

It does not fit with the 73-80 floor I can attest to that, mine is behind a LT motor with tejas mounts and so far added a 2wd high hump, not enough, will need to most likely use the 4x4 high hump to get past the seat. I am still working on a solution.

Stangetr · Mar 5, 2024

not enough room under 2wd high hump, and no clearance for the driveshaft

TotalyHucked · Mar 6, 2024

Is this going in the '86 that's in your profile? If so, I work at AMD and we have a "high hump" tunnel cover coming out in the next few months (not sure what your timeline is). I've got the prototype in my '85 for a T56 and it should fit a 6L90 just fine. There's boatloads of room with this hump

Here's what the '84-up 2wd floorpan looks like with the low hump...

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And the high hump laid over...

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TotalyHucked · Mar 6, 2024

My '85 with the T56 coming through the floor. We made sure to make the hump large enough on all sides to give options to mount, I used nutserts in the floor with bolts. It also goes far enough back that it's actually under the seat a touch, so it comes up on that rear hump (that's there for the Tcase in 4wd trucks). Should be perfect for that 6L90

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TotalyHucked · Mar 6, 2024

I just realized this thread is nearly 5 years old :Boo:

6L90 fitment

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