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Transmission Problems Under 100k Miles

cmoore74

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cmoore74 Enthusiast

cmoore74

Posted
Posted

Hi All,

 

I did a search and couldn't find this as a poll.

 

I am confident the engine is "bullet-proof" to well over 100k miles, but it appears the transmission is a different story. I'm trying to decide if the extended warranty to 100k miles is worth it. The likelihood of transmission problems will be the deciding factor.

 

If you have had problems please let me know if you baby the truck, tow with it, drive it like you stole it, etc.

 

If you haven't had problems AND have gone close to or over 100k miles, please vote.

 

Thanks,

Chris

saltwater_addict Enthusiast

saltwater_addict

Posted
Posted

2000 Z71 The truck has towed quite often its whole life sometimes light, sometimes alittle too heavy It stayed in the mud pretty often for both work and play for the first 110k or so i am now at 17X,XXX and havent had any tranny work done, although i think its on a slippery slope but not too bad in my opinion oh yah now i drive normal with gas the way it is, but it still tows whenever needed

Wolverine350R Enthusiast

Wolverine350R

Posted
Posted

99 sierra. I drive mine kind of hard (quick accel and such)and I've never had a problem. it has a little over 100k on it and I've had it since ~85k. I don't tow much (horsetrailer every now and then), but I haul ATVs ranging from 500-800 lbs in the bed fairly often.

mcreyaufmiller Senior Enthusiast

mcreyaufmiller

Posted
Posted

My 98 had problems at 90k, i installed a transgo kit and it fixed the problem until i reached 160k and had to rebuild it. I believe the problem was the torque converter, but when the tranny was apart, the clutches were worn out and need replacment.

 

As far as treatment, I beat the crap out of my truck. I have alot of mods to the engine and changed the fluid when I started having problems, then again when I built it. I am currently looking for a 4l80 E for the new motor.

Burbman Enthusiast

Burbman

Posted
Posted

77K miles and no problems yet. I tow a 9K lb RV every season. I also change the trans fluid and filter every spring, it's cheap insurance, and also watch the temp gauge when towing, I don't like to see it more than 210 worst case. It usually won't go above 200 in stop-n-go traffic, 175 on the hiway.

Bish Senior Enthusiast

Bish

Posted
Posted

Mine lasted to about 140K and then the 2-3 shift started slipping at WOT. I flogg my vehicle somewhat regularly. I've had my FLT rebuilt/built for about 25K of hard driving with all torque management removed and it is holding up well.

PELICAN Enthusiast

PELICAN

Posted
Posted

:smash:

117,000 miles and no problems so far. I usually only tow a trailer two or three times a year and I do not drive her as hard as did since she went over 100,000.

:cool:

mmmikkke Senior Enthusiast

mmmikkke

Posted
Posted

My 2002 Z71 (4L60E) developed a rough 1-2 shift at about 50,000 miles. Seems to be my luck with 4L60E's. I don't think I'm hard on the trans.

 

I never have any problem with 4L80E's. My '95 K3500 went 155,000 miles before I sold it and still shifted like new. My '05 2500HD is fine with 30,000 miles.

bdeboer Enthusiast

bdeboer

Posted
Posted

Traded My '99 Sierra Z71 ECSB 1/2 Ton in at 90K+ no problems with Transmission. Towed a 27' Travel Trailer with it, and an occasional Bobcat or small tractor.

Nappers Enthusiast

Nappers

Posted
Posted

105,000 miles 2000 GMC Yukon 2WD, no problems yet. Just maintain them and cruise this forum among others for tips to keep them running. We get 265,000 miles on our Tahoes for our Sheriff's Department and you know we drive hard.

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