T-18 = dana 300? - JeepForum.com
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post #1 of 6 Old 10-11-2002, 09:34 AM Thread Starter
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T-18 = dana 300?

i have a T-18 out of a j20 truck. would that have had a dana 300 attached? some one told me if i want to use my dana 20 than i will have to buy an adapter ($500ish) and it would be cheaper to get a dana 300 and put it on there. is that true? my dana 20 is shot any ways.

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post #2 of 6 Old 10-11-2002, 09:54 AM
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Not true. If the J-truck is '79 and older it will have a Dana 20 behind it. If it is '80 or newer it will have a NP208 behind it. Jeep never offered the Dana 300 behind a T18 in any model.
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post #3 of 6 Old 10-11-2002, 02:51 PM Thread Starter
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ok its an 82 so it has the NP208. what do you recomend that i do and what are my options?
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post #4 of 6 Old 10-11-2002, 10:14 PM
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That transfer case will have the front output going to a driver's side differential. Won't work on a CJ without a front axle swap. It also has a very long input shaft and a long (8") adapter from the tranny to the transfer case. Not exactly what you want with a CJ if you want a rear driveshaft in it. And no, no other transfer case you would want will bolt up to the spot where the 208 lives. Lots of people think that a Dana 300 will work there because the bolt pattern is the same. The problem is the NP208 uses a 31 spline input shaft and the 300 uses a 23 spline input. Go find another tranny.
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post #5 of 6 Old 10-12-2002, 05:52 AM
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Here, this site may help you if you havent seen it already!
I am planning to swap a t-18 from a ford 4x4 into my cj7 with a 304 and dana 300. the kit cost $470. and includes everything but the rubber/poly mount which is $16 more.
Also, here is a thread that i started earlier.

1982 cj7. Frame off. shell valley kevlar body, stainless hinges, Bestop seats and supertop, KC titanium lights, Homemade swing out tire carrier with spare front wheel bearings/hub, Built 304,DUI,Edelbrock shorty headers with dual stainless 21/2 tubes into incynerator cans 21/4 dumped out the back,Edelbrock 600cfm, performer intake and cam, Borgeson lower column, Centerforce clutch, NV-4500, Dana 300 w/custom built twin stick, Homade 1/4" steel skid plate, 2.5 soft ride w/ 1" shackle lift, 33x12.5 mtr's. Stainless fuel and brake lines, Braided hoses. more...

Last edited by Bulletproofcj7; 10-12-2002 at 05:55 AM.
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post #6 of 6 Old 10-14-2002, 01:11 AM
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I've done both T18 and SM465 swaps and think the sm465 is the better choice using novaks new 1" adapter. Trans and adapter length is 13". The sm465's are easier to find and any of them will work (2wd or 4wd) since the novak kit comes with a new output shaft. Novak kit is $490
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