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post #1 of (permalink) Old 02-25-2002, 06:50 AM Thread Starter
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How do you tell T18 from T18A?

I found a 79 J10 over the weekend. I think that it has a 360/T18A/D20 combo with D44 axles front and back. Does this sound like a likely combo for a 79? How do you tell if it has the T18 or T18A with the granny first? I really want to get this and part it out for my CJ7. It is currently a plow truck for a car dealer in town. He wants $1600 for it does it sound like a fair deal? The body is rusted out but the frame looks reasonable.

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post #2 of (permalink) Old 02-25-2002, 11:23 AM
 
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Re: How do you tell T18 from T18A?

http://www.jeeptech.com/trans/t18.html

from the website it sounds like the t-18a was used from 76-79.

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post #3 of (permalink) Old 02-25-2002, 01:51 PM
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Re: How do you tell T18 from T18A?

Be careful, the T18 in Jeep trucks are longer than the CJ models due to a longer t/c adapter. A friend of mine learned this the hard way. If you have any sort of decent lift, you will run into harsh driveshaft angles. Also, the input and output shafts are different than the CJ version, but if your swapping the t/c and engine with it, it won't be a problem

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post #4 of (permalink) Old 02-25-2002, 02:01 PM Thread Starter
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Re: How do you tell T18 from T18A?

Actually, I wanted to keep my D300 and I'm still undecided if I would put the 360 in or not. Can the output shaft be changed to a shorter one and mate to the D300?

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post #5 of (permalink) Old 02-25-2002, 03:35 PM
 
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Re: How do you tell T18 from T18A?

first of all $1600 is higher than astronout ganja! for a rusted out Jtruck.

second the transfercase adapter is NOT what makes the T18 longer from a J truck, if the J truck hjas a V8 then there is a spacer between teh bellhousing, and tranny, and a VERY long trans input shaft, it can be swapped with a FORD input shaft to ge teh short T18, like used in CJs

BUT its got a 1" adapter to a Dana20, you not saving ANY money going this route if your planning to use it in front of a dana300.

there were some T18a used in 81-83 J20s that will bolt to a dana 300, but they do have a 5 inch or so adapter between the trans and teh Newprocess Tcases they came with.

My T18a came from a 79J10 with a 360, its granny.



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post #6 of (permalink) Old 02-25-2002, 04:25 PM
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Re: How do you tell T18 from T18A?

Ozarkjeep is right, the adapter is on the bellhousing side, excuse my weekend brain damage. If your going to use your D300, go with a Ford 2wd T18, it still has the granny gear, is a lot cheaper than the 4wd version, and the adapter you need for the 300 is readily available.

post #7 of (permalink) Old 02-26-2002, 06:56 AM Thread Starter
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Re: How do you tell T18 from T18A?

Thanks guys. Yeah, I know it was a lot of $$$, but I thought that parting it out would offset the cost a little. I'll keep looking.

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