T-18 Questions - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 09-12-2000, 06:33 PM
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T-18 Questions

Well I finally fot a T18 with the 6.32 gear ratio. Only one problem it has the long input shaft. None you guys would happen to have the short shaft with the correct 17 tooth gear for sale would ya? Or is their any way pull the gear off and put it on a short shaft that I already have?

Thanks
Kevin

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post #2 of (permalink) Old 09-12-2000, 06:44 PM
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Re: T-18 Questions

why do you want to use the short shaft? i have a t18 from a j series truck.. has the 5" spacer and long input shaft.. and it fits great into my cj7.. shifter comes out right in the middle of the opening.. running a d20 transfer case.. and a d60 rear end..

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post #3 of (permalink) Old 09-12-2000, 07:07 PM
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Re: T-18 Questions

I don't have the spacer. But going to long shaft may be easier so I don't have to buy new driveshafts i'll just have to buy the adapter.

Thanks alot!!

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post #4 of (permalink) Old 09-12-2000, 07:41 PM
 
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Re: T-18 Questions

If i find a t 18 in a junkyard, how do I tell it has the 6:1 gear without arguing with the 45 year old middle school drop out.

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post #5 of (permalink) Old 09-12-2000, 07:46 PM
 
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Re: T-18 Questions

you have to turn it and count Brownbag thats the only SURE method ive ever trusted

you can buy the shorter (6.5 inch) FORD shaft for not alot of money CJkid, thatll leave you with ALOT more rear driveshaft, and then you can use a standard T150 bellhousing



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post #6 of (permalink) Old 09-12-2000, 08:00 PM
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Re: T-18 Questions

from what i know.. 3 basic versions..
1-early models had a 1" adapter plate...
2-later models out of full size jeeps had the 5" spacer.. V8 version
3-later models behind I-6's had a shorter adapter.. not sure on length..
all three could mount up to the same bell housing.. amc T-15
i have heard that the difference between the I6 and V8's where this way to keep drive shaft lenghts the same.. dont know if this holds water.. just what i have heard..
t18's that came in cj's from 71-76 had the 4:1 first.. the 77-79 version had the 6:1..
and all other versions that i know of came with the 6:1 first..
was also offered in 80 & 81 j20's.. but the output is different.. was round for the np208.. so its not much good.. since it also had a 9" output shaft..


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post #7 of (permalink) Old 09-12-2000, 08:08 PM
 
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Re: T-18 Questions

the inline 6 models had NO adapteron the front, they bolt directly to the bellhousing, all T18s in Jeeps before 1980 had a 1 inch adapter to the dana20/dana18 older versions

the 81-82 J truck T18, actually is pretty desirable. here is why:
the rear adapter is about 5 inches long, itll bolt to a Dana300
so you can remove the FRONT 5 inch adapter, install the Short Ford input shaft and bolt it into a Cj7 or 8 ( still too long for a CJ5) and itll fit just like hte T18 you are running right now Jeepgod! but im suprised you say it fits, most folks consider the resulting rear driveshaft too short

the bad part, hard as heck to find!


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post #8 of (permalink) Old 09-12-2000, 08:27 PM
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Re: T-18 Questions

we put a jeep long input shaft t-18/dana 20 combo beind a amc401 in my buddys 87 wrangler and he had pleny of rear drive shaft between the dana20 and the dana 60. it was considerably longer than mine when i was still running the stock wheelbase on my jeep.

brian wilson
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stretched to 100" wb
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post #9 of (permalink) Old 09-12-2000, 08:53 PM
 
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Re: T-18 Questions

a wrangler is longer than a CJ 5 right?

thats also ALOT shorter engine than MOST wranglers had from the factory

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post #10 of (permalink) Old 09-12-2000, 09:58 PM
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Re: T-18 Questions

yes.. if you remove that front long shaft.. it is awesome.. but then again.. its rare.. and alot of work and money..

my rear driveshaft is getting ordered on friday.. im running a cv shaft.. and its pretty long.. longer than my stock cj shaft..

yes the wrangler is the same length as the cj.. it would be a tight squeeze in a 5.. but i have tons of room.. my front shaft is waaay long..

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