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- Lp1331 1p1331
January 5, 2011, 7:16 pm
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has rear axle ratio of 4.10, which I had assumed all along. It has a
700R4, and seems to 100rpm/3mph-- IOW, 1500= 45mph, 2000=60. I was
wanting to change the rear end to somewhere in the 3.50 range, but then
saw a website on transmissions that gave the OD ratio of a 700 as about
68. I am afraid that 3.50 +/- would be lugging the engine in OD. FWIW,
truck is a 3/4 ton extended cab and has a liftgate on it.I do not plan
to tow anything heavy-- maybe a car on the tow dolly, or a trailer with
about 1000 lb on it. I can't see going to the expense of changing the
rear end to just the next higher ratio from 4.10. Any comments and
advice will be greatly appreciated. Thanks Larry
Re: 4.10 gears
It is very hard to second guess the huge team of engineers who designed
this fine truck. I sure would not mess with something that works well.
Having owned and tinkered with tricking out over 100 cars and trucks,
built since 1947, my experience and common sense now prevails, and,
I prefer to "run what it brung"!
If it ain't broke, I don't go and "Fix" it!
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