Did I do harm to my T-case?

1103 Views 8 Replies 7 Participants Last post by Tow Master, Mar 23, 2010

lubeman1969

Discussion Starter · Mar 3, 2010

Hey guys...question for you. I accidentally towed in 4-high for about 11 miles of highway this evening. 70 mph, towing roughly 5k. I was loading the hauler and needed 4wd for a second and forgot to take it off and go into 2wd. Was this bad? I dont think so, just seeing what you all thought. Truck has 39k miles, no known probs. Mods listed in my sig below.

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Johnasara

· #2 · Mar 3, 2010

Probably not, I have driven around in 4 high for a while before.I actually had a 91 gmc I drove in 4 high for like 2 months because I broke the rear drive shaft. I still towed with it that way too.

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Texan79

· #3 · Mar 3, 2010

I had a 2004 cc 2500hd gasser that I forgot to take out of 4wd twice on my way home from my hunting lease and drove 80 miles towing my ranger it didn't hurt anything but my mileage.

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03-GMC

· #4 · Mar 3, 2010

Haha funny story i did the same thing the length of my trip like an hour and a half drive. I used it to pull out of my friends lot and it had been raining that day so i put it in 4 high to pull the 5th wheel out of the mud. Yeah lets just say I forgot it was in until i got to my destination.

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lubeman1969

Discussion Starter · #5 · Mar 3, 2010

I'll check my fluids tomorrow and see that they are ok. I know Im just being paranoid...prob something almost everyone here has done at some time or another. I've been thinking of changing the front diff and t-case anyway, might just give me a reason to do it.

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MMLMM

· #6 · Mar 3, 2010

I have run mine in 4hi WOT, with over 500+ rwhp for 1/4 mile increments many times...still holding up.

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lubeman1969

Discussion Starter · #7 · Mar 3, 2010

MMLMM said:
I have run mine in 4hi WOT, with over 500+ rwhp for 1/4 mile increments many times...still holding up.

What are you saying?? Mines not 500rwhp? Haha, it is actully 426 RWHP. Yeah, I thought about all the racers and realized prob. a dumb question. :toilet

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KWfarmer

· #8 · Mar 23, 2010

We have ran in 4 high for almost 700 miles at about 60mph in one trip due to icy roads. You'll be just fine, no worries.

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Tow Master

· #9 · Mar 23, 2010

If you drove 1000 miles Id change the fluid. Thats nothing for the 4wd. Your good

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