ECOTRIC Conversion Crossmember 4L60E to 4L80E Compatible With 2000-2013 Chevrolet Silverado GMC Sierra

Great fit. Installed on 2002 RCSB Sierra 1500 when I did my 4l80e swap and it bolted right up with no issues.

For a starting point this isn't bad. But the seat for the trans mount would need to be cut off & welded inward to fit a manual trans for a 99-06 chevy. You never realize how hard parts like these are to find (i scrapped the stock one ofc). The bolt hole would need to be lengthened as well, very close to the center bar. I'm already using the stock abomination i made or else id give this a shot.

I replaced my 2004 Chevy Silverado 1500 two wheel drive 4L60E transmission with a 4l 80e transmission and this cross member fit perfectly between the frame rails and the correct distance back to support the new transmission as needed. Seems like good high quality powder coating and should last for years. Would highly recommend. Better than having to cut and weld and hope that you get the angles correct. This just bolts right in

I looked at multiple crossmembers. This was the cheapest one. Worked great. Has nice gloss black finish. No adjustments needed bolt in and go for a 4l80 swap on an 04 Silverado rcsb 2wd. Haven’t driven the truck yet, it is a 5.3 with a built trans and a big turbo so it’ll definitely be put to the test. Time will tell

Haven’t installed it yet so idk how good it’ll fit with the 4l80, looks nicely built but it needs better weldsThe weld on the part where the transmission mount goes is pretty bad, I’m going to test fit it, if everything fits perfect, I will grind off the existing weld and put a better weld on there

Worked perfect for my 2001 tahoe with an 80e swap, may have to slightly dremmel the trans mount hole like 1/2” but other than that it’s fine.

Fit perfect

4L60e to 4l80e Perfect fit. Reused old 4l60e transmission mount. This brace fits on stock location.