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post #1 of (permalink) Old 09-05-2002, 12:00 PM
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I think I found a factory cj T18

I was at a salvage yard looking around yesterday and found a 1979 CJ7. It had what apppeared to be a T18 setting in it. I was just able to see the front of it. there was no engine there. The data sticker on the rad support said 304 v8. I did some research on the jeeptech site on the availability of that tranny in cj's. I need to go back and ask if i can pull the floor cover off so i can get a better look at the tranny and t-case.

My question is how do i determine if this is a t18 with granny low. Can i just put it in first hi range and spin the input and count the output rotations? If that is fatory it should have had a dana 20 t-case in 1979 right? What bell housing would i need for this tranny?

Is threre anything i should look out for buying a used tranny? The jeep had been rolled. The cage was bent but still intact.

The guy told me he wanted $350 for the tranny and another $100 if i wanted the t-case. Good price for the tranny?
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post #2 of (permalink) Old 09-05-2002, 12:09 PM
 
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Re: I think I found a factory cj T18

Here is what a 79 CJ T-18 looks like from the front:
http://virtualmajic.tzo.com:8282/pic.../jeepcjt18.htm

If it is really a 79 T-18 reverse will be all the way over to the right and down. From my research a while ago I deremined that all 79 CJ T-18's had the 6.32 first gear and are the only ones with reverse in that spot.

If anyone is interested....the T-18 in the above picture is for sale. Its in Massachusetts and you have to come pick it up.
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post #3 of (permalink) Old 09-05-2002, 03:07 PM
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Re: I think I found a factory cj T18

Now THAT is REALLY strange! The T18a in my '78 has reverse all the way right, and FORWARD. Why on earth would something like that change?
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post #4 of (permalink) Old 09-05-2002, 03:40 PM
 
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Re: I think I found a factory cj T18

the T98a has reverse right and forward. I know some of the T18s used cases and components of the T98. T98s and some early T18s did not use a direct fork to move the reverse idler gear... instead, the reverse shift rod actuates a lever which pivots on the case wall (and is, incidentally, a real pain to remove when rebuilding). Pivoting this lever moves the reverse idler gear forward and back. The difference in this direct fork vs. pivoting lever is where you get your right/back and right/fwd change.
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post #5 of (permalink) Old 09-05-2002, 03:48 PM
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Re: I think I found a factory cj T18

The things one can learn here!
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post #6 of (permalink) Old 09-05-2002, 04:03 PM
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Re: I think I found a factory cj T18

The early T-18's and T-98's had reverse all the way to the right and forward. Later T-18's (somewhere around '80) had reverse to the right and back. Externally they are easy to tell apart by the top. The earlier version's top was virtually straight on the sides. The later model had a bulge in the case and the top where the arm that engages the reverse idler drops down. The shift forks/arms for the late model are aluminum and it's common for the teflon shoes to wear out and fall off and then wear out the forks/arms, especially if you drive around with your hand resting on the shift knob. This is common to both Jeep and Ford T-18's. By the way, it's tight but you can disassemble and reassemble the earlier T-18 without removing the shift arm for the reverse idler. You have to move the arm towards the back of the case (the top end of the arm), move 1st gear shift ring towards the front of the trans, and 3rd-4th gear shift sleeve toward the back of the trans. If everything is lined up just right the mainshaft assembly will come out. Once in a while you have to remove the snap ring and remove the 3rd-4th shift hub assembly, which you can do while the main shaft is still in place (rear bearing must be removed of course and cluster shaft must be removed so the cluster drops to the bottom of the case, but must be done anyway for disassembly). Nickmil.
post #7 of (permalink) Old 09-05-2002, 05:29 PM
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Re: I think I found a factory cj T18

It sounds like the early T18s are a morphodite combination of T18 and T98 parts, but the more desireable box anyway. Isn't it amazing how many times the factory makes improvements which end up with an inferior product.

My mom's VCR succumbed to a lightning strike, and her insurance company told her to replace it. First I took it to a repair shop, and the guy told me that insurance would never authorize repairs, because a new one is $75 or less, which would hardly cover even basic repairs to the power supply.

On the other hand, he told me that no company, anywhere in the world, made a VCR that could hold a candle to her three-year old RCA. "The new ones are all junk, with tiny transformers that crap out under the least stess, and all plastic parts in the tape transport. Nothing but junk!" New and improved, though.
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post #8 of (permalink) Old 09-05-2002, 08:08 PM
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Re: I think I found a factory cj T18

So guys, Is this a good deal on the transmission?
post #9 of (permalink) Old 09-05-2002, 08:17 PM
 
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Re: I think I found a factory cj T18

if its a factory Cj length T18 in usable condition its worth $350

if it needs hard parts, or has some funky input shaft or something, its worth less.

Ive only heard of a couple coming factory behind a V8, so Id say odds are its swapped, or its actually a T150? but im speculating based on what ive seen.

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post #10 of (permalink) Old 09-05-2002, 08:25 PM
 
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Re: I think I found a factory cj T18

$350-If it is a Jeep T18 with the granny and is in good shape yes. If it needs rebuilt and some gears replaced it will be pushing $500 in parts. Mine has first gear and the cluster gear in need of replacement, new synchros, bearings and that is the price I am finding. You will probably need a new clutch disk-$150. Average price on the TC. Make sure you swindle the tranny to transfer case adapter plate or that will cost you about $250 for the plate alone (Novak-adapt.com) I would buy everthing for the $450. Also do not forget you will need both front and rear driveshafts. Scam them if you can-otherwise approx $300 each or pay a local guy to modify. Will it fit your bellhousing? More $$ if you need a different one.
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