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Old 11-21-2011, 03:45 PM
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350 turbo vs 700R4

Which one is longer? I was going to buy a 350turbo but all my buddies say 700R4. I know the 700 has a low first gear and overdrive but the 350 is simple and short. So it should fit well in a jeep.

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Old 11-21-2011, 05:06 PM
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I believe it depends on the tail-shaft of the TH-350. If it's a 6" tail-shaft, the 700r4 will be ~3 inches longer. If the TH-350 you're talking about has a 9" tail-shaft, the 700R4 would be within 1/8" of the same length.

If I had the choice to run either, it would be the 700R4. The biggest thing to consider is proper adjustment of the TV cable. The overdrive is a big + in my book!
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Old 11-22-2011, 08:06 AM
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If you do rock crawling the 700R4 has a 3.06 1st gear. The TH350 has a 2.52. A lot of times you are limited to gear selection based on the axle. 4.88 is all you can go in a Dana 30/35 axle. With 35'' tires a 4.88 is marginal and you wouldn't need overdrive. Dana 44 axles can take more gear, but I dont think enough for overdrive to be really usefull.
Post your axle and xfer case ratios along with tire size.
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Old 11-22-2011, 11:06 AM
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Tranz

2001 jeep tj, 3:73 D44, 31" tires, 2:72 low TC. No rock crawling here. Very light off road. I use it mainly for a street buggy for me and the dogs. I building a 355 that will be finished after Xmas. The only head scatcher I have is the trans. I going with a 350 turbo with an adapter for transfer case. Built a lot of motors but never done a trans before. And I want it to shift so hard that the dogs have to be strapped inn.
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Old 11-22-2011, 01:12 PM
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Add an air or e locker and that Jeep will go anywhere.
You will need a 4x4 TH350 output shaft if you have a normal TH350. When you remove the tailshaft on a normal 350, the output shaft sticks way out. The 4x4 output shaft sticks out about an inch or so past the case. It requires complete trans disassembly as it is the first piece to be installed when rebuilding. The shaft can be bought fo $50-75 from a trans shop.
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Old 11-22-2011, 01:47 PM
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Trans

It has a posi-lok or something? What ever comes from the factory. Too old to go off roading. Last time I went, three yrs ago it cost me a windshield and a tire! I was 110 miles from home. That was in my 97 tj se. That 4cyl would climb just everything except a big *** tree branch. When things go wrong they go wrong quick!!
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