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Old February 24th, 2010, 10:19 AM   #1
xsv-4c
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Hello all.

I'm looking for a T18 with the 4:1 ratio. I would prefer one from a CJ to get around the need for the 400 adapter to mate my Dana 20.

Thanks Justin
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Old February 25th, 2010, 10:57 AM   #2
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Hi. Have a complete set-up. came out of a 79 cj. bell housing,t-18 trans with granny gear. Dana 20 transfer case with shift linkage. $850.00. Thanks. Jim 248-722-9427
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Old February 25th, 2010, 11:24 AM   #3
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Originally Posted by C-J Jim View Post
Hi. Have a complete set-up. came out of a 79 cj. bell housing,t-18 trans with granny gear. Dana 20 transfer case with shift linkage. $850.00. Thanks. Jim 248-722-9427
Granny gear means it has like a 6.2:1 ratio, not a 4:1 like he wants.

Last edited by redhead_823; February 25th, 2010 at 03:32 PM.
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Old February 25th, 2010, 03:28 PM   #4
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Granny gear means it has lile a 6.2:1 ratio, not a 4:1 like he wants.
Maybe he doesn't know what he wants/ T18's in a cj never came with a 4:1 ratio.
And if we want to get technical the CJ t-18 has a 6:32 ratio, not 6:21 as you say.
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Old February 25th, 2010, 03:31 PM   #5
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Maybe he doesn't know what he wants/ T18's in a cj never came with a 4:1 ratio.
And if we want to get technical the CJ t-18 has a 6:32 ratio, not 6:21 as you say.
That's right, 6.32. I was going off the top of my head. And I don't don't have a clue about CJ's, but I have a T-18 in my Scout.
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Old February 25th, 2010, 03:33 PM   #6
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Hey, Jeepers48 thanks for clearing that up. You beat me to the punch. Thanks, Jim.
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Old February 25th, 2010, 03:35 PM   #7
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Originally Posted by jeepers48 View Post
Maybe he doesn't know what he wants/ T18's in a cj never came with a 4:1 ratio.
Yes, they did. The wide-ratio was an option prior to 1977.
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Old February 25th, 2010, 09:18 PM   #8
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Thanks CJ Jim, but my Cj is more of a DD than a trail rig. Thats why Im looking for the
4-1 ratio. It doesnt have to be from a Jeep. It would be nice to not have to buy the $400 part from AA or Novak.

Thanks Justin
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Old February 26th, 2010, 06:29 AM   #9
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Yes, they did. The wide-ratio was an option prior to 1977.
Thx Mark, I stand corrected again.http://www.jeeptech.com/trans/t18.html I didnt look hard enough.
The 6:32 ratio would still be good for a daily driver. You would have the better of 2 worlds. And depending on your R&P's you could start out in second gear verses first. Final drive, I believe would still be the same.
Ive never found a CJ with a 4:1 ratio but have found them in some of the jeep pickups.
Another option might be looking for a T-176 4 speed with a D300 case. The T-176 is a cast alum trans but IMO is worth its weight. It uses the same bell housing as the T-150/T-18.http://www.jeeptech.com/trans/t176.html
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Old February 26th, 2010, 08:05 AM   #10
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The 6.32:1 would be annoying for daily driving. 4:1 is quite nice and the T-176 almost gets you there, but has different transfer case compatibility.

If you want the strength of the T-18 and you want to daily-drive, I would probably look at a 4:1 T-19 with a synchronized 1st gear and change over the input shaft.
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