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Brian 162 Brian 162 is online now
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Join Date: Sep 2005
Location: Guelph Ontario
Posts: 2,597
Tahoe Transmission

I need some advice from the OT brain trust
My 17 Tahoe has 134,000 miles and has the 6L80 6 speed transmission.
Last week while driving the vehicle seemed to shudder at around 35 mph.
I’ve changed the trans. oil/filter twice in the last 5 years.
Right now the oil is clear with a slight burnt smell.
I’ve been given 3 options from my mechanic
1 replace torque converter, remove pan and see if there are filings/clutch material. If nothing major try it and see what happens. I’m looking at 9 hours labour plus torque converter
2 Rebuilt transmission with torque converter. It comes with a 1 year warranty $5500 all in.
3 Reman GM factory transmission/torque converter. Transmission/converter around $5800. Plus 9 hours labour. I’m looking around $7800. It comes with a 3 year 120,000 km warranty.

I’m leaning toward just doing the torque converter and take my chances. We would know right away if that was the issue. I have no problem taking a chance. If it doesn’t work I will probably go with the GM reman. I plan on keeping the vehicle for a few years at least.
This vehicle’s torque converter and transmission doesn’t have a good rep. Another member here had the same issue with his wife’s Tahoe.

What would the brain trust do?
Thanks in advance
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80 911 SC sold
17 Tahoe
07 Z06 Corvette
Old 12-02-2025, 02:10 PM
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