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Old 12-27-2002, 05:34 AM
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Post Shifting a 700r4

It was suggested that when driving in town, is to keep the transmission in 3rd and on the highway over 50 mph, is to put it into 4th OD.

My thought is that by putting it in 4th in town, the transmission stay in 3rd and will not shift until it reaches 50 mph so it really shouldn't be an issue on wheather it's in 3rd or 4th in town.

Your thoughts?

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Old 12-27-2002, 06:30 AM
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It will tend to shift into 4th under 50 mph and will down shift back into 3rd quite often. The often shifting back and fourth tends to cause undue wear. Also dont tow anything in the OD it will spit chunks! My Bro has a GMC truck that has a 700R4 its benn rebuilt 3 times this time its lasted the longest and I think its from driving in town in 3rd. Also when you put it in park engage the ebrake first so that the weight of the car is resting on the ebrake and not the trasmission. Ever noticed when your on a encline and its hard to shift out of park? engage the ebrake first then put into park coming out of park will be much easier. hope this helps

[ December 27, 2002: Message edited by: Maverick ]</p>
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Old 12-27-2002, 02:13 PM
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The manufacturer suggested driving tecnique is to leave it in OD unless you're in a situation where it keeps up shifting and down shifting often. If you run it in third you may wear the over run clutches out. Probably not though.

My brother has a '88 1/2 ton chevy 4x4 with a 350 and 700R4, he tows his boat on 400 mile trips about every other week, original trans,,, fluid first got changed at 125,000. It's still going strong at 148,000. Go figure...
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