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Old July 15th, 2007, 10:45 PM   #1
milwaukeemud
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Question TH 700-R4 towing good or bad

My suburban has a 700-R4 I hear this is the biggest P.O.S ever made for GM
I want to pull a car home but im afraid of the trany it had one replaced 2 years ago or do I just have bad luck with these trany's
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Old July 15th, 2007, 10:53 PM   #2
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They're not Horrible. Not the most durable out the box.. with a few upgrades they're preatty damn good. Pulling a car home id say you'll be fine.. I towed a FSJ with my old 88 1500 chevy about 150k on the tranny and pushing roughly 350-375 horse in the engine had no complaints from the trans.. you'll be fine.
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Old July 16th, 2007, 04:22 AM   #3
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Originally Posted by Muddinguy View Post
They're not Horrible. Not the most durable out the box.. with a few upgrades they're preatty damn good. Pulling a car home id say you'll be fine.. I towed a FSJ with my old 88 1500 chevy about 150k on the tranny and pushing roughly 350-375 horse in the engine had no complaints from the trans.. you'll be fine.
just keep it out of overdrive
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Old July 16th, 2007, 05:03 AM   #4
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just keep it out of overdrive
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Old July 16th, 2007, 06:13 AM   #5
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Old July 16th, 2007, 09:01 AM   #6
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Do whatever you need to with it until it fails. Then you'll have the opportunity to correct all the weaknesses and not have to worry about it anymore.

Make sure your trans cooler is nice and clean before you do the tow (or radiator if its one unit) so you can cool it as best you can. The trans has other weaknesses, but there's no reason to compond them with extra heat.
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Old August 5th, 2007, 05:28 PM   #7
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if its got the old 7 vain pump, it'll get hot.
i think they make a 13 vain pump that keeps it alot cooler.

the enemy of any transmission is heat.
keep it out of overdrive and try to maintain a constant speed(so the convert locks up and stays locked up, this will help with the heat thing)
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Old August 5th, 2007, 05:54 PM   #8
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Originally Posted by milwaukeemud View Post
My suburban has a 700-R4 I hear this is the biggest P.O.S ever made for GM
I want to pull a car home but im afraid of the trany it had one replaced 2 years ago or do I just have bad luck with these trany's
You must have been talking to one of those weird G-Body guys. They think the 2004R rocks. The 700R4 was GM's choice transmission for all of their main production "performance" vehicles (Corvette, Camaro, Firebird).

78 and older did have some growing pains but nothing to scream about.

As others suggested, keep it out of OD. Any trans for that matter. Why work it harder than it needs to be?

Oh, BTW, the next gen of the 700R4 was the 4L60E. Yes, found in most every 4-Wheel Drive Chevy truck next to its sister the 4L80E (based on the 400 turbo and the 700R4).
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