Poll: How long has your transmission lasted?

[SnowDrifter]

Just curious. I know they are a weak point on these vehicles.

Please include year, mileage, maintenence schedule, and any mods to the vehicle

 

[PNWMuseumman]

• 2002 Tahoe Z71
• 280,000~ish miles
• Essentially no maintenance done on the transmission. Maybe an occasional fluid change. But none that I am aware of. I've known the car it's whole life as my parents bought it new before giving it to me a few years ago.
• No mods

• Still on original transmission with ZERO issues.

 

[RST Dana]

2007 traded at 160K no issues
2013 traded at 130k with pump and Tordue converter replace at 44k

 

[Erickk120]

2004 z71
lead-footed
180k RIP sun shell
220k+ running fine

 

[ivin74]

165k no issues yet, knock on wood.

 

[Countryboy07]

2005, just shy of 250,000, all OEM. Blackbear tuned, have Vette servo and new fluid to put in, just haven't gotten around to it

 

[adventurenali92]

2006 with a 6.0L and a 4L65E at 115k. Bought it with 74,600 miles. OEM trans died at 86,000. Rebuilt, fluid changed at 1,000 miles after the rebuild, and since been blackbear tuned with a spectre intake and a magnaflow muffler. No trans issues since the rebuild.

 

[ScottyBoy]

I drive my 2001 Suburban like I stole it, pretty much always did ever since I originally bought it back in 2006 with 52k miles on it. I installed a Vette servo and got a Blackbear tune in 2010. The sunshell in my transmission broke apart at 118,000 miles in 2012. When I had it rebuilt, the shop told me that the clutch bands appeared to still have a good bit of life left in them. Nonetheless, I had the the transmission completely rebuilt, not just the broken sunshell replaced. Not a single issue since it's been rebuilt, and I still drive with a really heavy foot. I originally thought that perhaps the tune had something to do with the transmission failing so early. But then again, I now realize that it was a bad combination of the ****** GM sunshell and my lead footed driving style.

 

[DubTahoe21]

2004 Tahoe Z71, 150k, fluid changes only, no issues

2013 Tahoe Z71, 45k and counting

 

[Henry V]

04' Denali 260,000 when tranny failed
Fluid fluid change every 40,000