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Unread 04-22-2002, 11:14 AM   #1
cjryder
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Join Date: Apr 2002
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ford t18 in a cj5

I just got a Ford T18 tranny to put in my 75 cj5, which has a 304 and a 3-spd manual. It also has a dana 20 t-case. Do I need both a longer input shaft on the traanny, and a new bell housing?
Will I need to shorten or lengthen any drive shafts?

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Unread 04-22-2002, 09:01 PM   #2
jeepdaddy2000
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If you have a T150 3 speed your T18 should bolt right up to the bell housing with no changes. You need an output shaft from a Scout or Jeep T18 to replace the stocker. I'm not sure if you can adapt the stock 3 speed transfer case adapter to the 4 speed. If not you need to find an adapter from a Jeep or scout T18 and drill and tap the trans casing to except it. I did this conversion with my 71 and it went together with no problems. as for length, if you can use the stock adapter, your length differance will be the differance in the trans length. You are going to LOVE this trans. the 6.5 to one first gear is a serious improvement, and the T18 is almost unbreakable.
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Unread 04-23-2002, 06:24 AM   #3
cjryder
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Thanks for the good advice jeepdaddy. I had another guy tell me I needed to shorten the back d-shaft and lengthen the front one. Is there a particular year of scout to look for?
The jeep t18's seem to be high demand.
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Unread 04-23-2002, 09:21 AM   #4
4wheeler4CJ
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The T-150 and T-18 have different bolt patterns. You can use the same bellhousing, but need to use different holes for three of them, the top left hole, you will have to install a stud through the back of the bellhousing and "press" it in. You will see what I mean if you hold it up to the tranny. There is either a hole for the stud or a "knockout".

If the tranny is a T-18, the first gear ratio is not 6.32:1. That is for the T-18A. The T-18 is 3.72:1 (or something very close to that). Still a very good tranny, very strong, just not as low a first gear. Check the number, it could actually be a T-18A, and you might not know it. (Many of the Fords were T-18, though).

As far as the shaft lengths, etc., you'll have to check the Jeep Specs to see what you will need to do to match it to your setup.

Good Luck, you'll like it anyway!
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Unread 04-23-2002, 10:24 PM   #5
jeepdaddy2000
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I have seen a number of T18's in ford applications and all have had the 6.5(6.32)to 1 first gear ratio(T18A But you know me, I've NEVER been wrong. HA HA). Sorry for the discrepency on the bell housing info . A buddy of mine had a bellhousing in his Jeep and it was drilled for multiple trans. With that in mind you might want to check the input length as well(My conversion was behind a Buick V6. Overall length differance sans stock adapter 3/4") As for the output shaft, any T18/ Dana18-20 application willwork.
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Unread 04-25-2002, 01:53 PM   #6
4wheeler4CJ
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jeepdaddy, you were right as far as the bellhousing, they do work with multiple trannies (as long as you're within the right "application years"), I was just pointing out the pressed in stud so he realizes that he can do it with that stud. As far as the drilled holes, all other holes are there, and just need to have the "gunk" cleaned out with a tap. The T-18 & T-18A are the only trannies that need the added stud. The hole is there for it already, though.

The fords did use T-18A sometimes, that's why i was saying to check the actual number, the T-18A's sometimes only said "T18", but the actual tag will differentiate. <img border="0" title="" alt="[Wink]" src="wink.gif" />
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