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post #1 of (permalink) Old 09-02-2000, 02:09 AM Thread Starter
Tim
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Anyone running a 700R4 w/4:1 xfer?

My initial test run of my '66 Jeepster to CO recently gave me my first opportunity to check out my newly installed 700R4 tranny and Atlas II 3.8:1 xfer. When I finally put it in low range, I just about got whiplash every time it shifted from 1st to 2nd. I mean it was excruciating. When in high range the tranny shifts just slightly crisp, not jerky at all. Do I need to eliminate the slight crispness for a slushy shifter in order to make the low range less painfull, or is it just not possible to eliminate the slamming effect with such a low range?

Tim
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'70 Wagoneer w/Buick 350 V-8
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post #2 of (permalink) Old 09-02-2000, 09:41 PM
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Re: Anyone running a 700R4 w/4:1 xfer?

tim,go back to who ever built your transmission and have them reprogram it.you get the harsh shifts,thru the changing of balls and springs. you have to much pressure for your 4 to 1 tranfer case.use to drag race,had same problem on my street/strip car.good luck ranger rick

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post #3 of (permalink) Old 09-03-2000, 11:25 PM Thread Starter
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Re: Anyone running a 700R4 w/4:1 xfer?

Yep that is the plan. Don't know how much it'll improve, but it's got to get better. Just hope the high range isn't real slippery/slushy after it's done. Was hoping to hear from someone with similiar setup. Anyone?

Tim
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post #4 of (permalink) Old 09-04-2000, 12:50 AM
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Re: Anyone running a 700R4 w/4:1 xfer?

I don't have a 700R4 but I do have a TH350 that I had built to shift firm for long life. In low range it will break your neck!! I just manually shift the tranny when in low range and make sure my foot is off the skinny pedal!!

Is you tranny computer controlled or not? A buddy of mine runs a computer controlled version and has a switch on the dash that howell programmed in for him to change from firm to soft for the very reason you speak of. Hope that helps.

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post #5 of (permalink) Old 09-04-2000, 01:02 AM Thread Starter
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Re: Anyone running a 700R4 w/4:1 xfer?

Mine is the non-computer model. I think the ones with computer are called 4L60E. Sounds cool, wish I had a switch like that. I too was trying to makes things crisp for longevity, but don't want a broken neck, don't want anything in the drivelines/axles broken either. Will settle for a little less life out of the tranny for less visits to the chiropracter.

Tim
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