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Unread 09-08-2009, 07:51 PM   #16
dakota12
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Join Date: Sep 2009
Location: west virginia
Posts: 8
If it is infact a t-18a, will it be stamped with t-18a?

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Unread 09-08-2009, 08:16 PM   #17
jeepcj5360
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1976 CJ5 
 
Join Date: May 2009
Location: oregon
Posts: 7
Another option is a NP 435 out of a Ford. It will bolt up to an AMC motor but you will need an adapter for the tc. I did this with my 76. It has a AMC 360 and a model 20 tc. You would not be dissapointed with the performance. The transmission requires a new main shaft and adapter plate, so if you can come up with a T18 that will fit without mods you would be better off, but it is another option.
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Unread 09-08-2009, 09:54 PM   #18
dbd
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1979 CJ5 
 
Join Date: Aug 2008
Location: Folsom
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Great info here, I have a 79 Cj 5 with the T-18 and the first gear granny is awesome, good slow crawl, perfect ratio, at 1k rpm and first gear, you can walk faster beside the jeep
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Unread 09-09-2009, 01:44 AM   #19
dakota12
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Location: west virginia
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See im buying a 77cj with the 304 an 3spd, but it has a 4 speed with it, an the pto is on the driver side, so i was assuming that it was a t-18.
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Unread 09-09-2009, 01:45 AM   #20
dakota12
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also if i went with the np 45, would i have to have the drive shafts fixed?
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Unread 09-09-2009, 08:49 AM   #21
CSP
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Location: Colorado
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Yes, the NP435 is longer than the T150 that the '77 has in it so driveshaft modifications will be necessary. Don't rely on casting numbers on the case to tell you if it's a granny version or not. I have had granny versions stamped with 13-01, T18a, and T18b on them. I also have a non-granny version stamped 13-01. You have to put the transmission in first gear and count how many input shaft revolutions are required to turn the output one revolution. If the 4speed isn't installed this is easy and foolproof.
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Unread 09-09-2009, 10:06 AM   #22
CJ51973
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1988 YJ Wrangler 
 
Join Date: Aug 2004
Location: Versailles, KY
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Driveshafts....if you just modify what you have it will be aorund $100 to shorten the back. The front will need retube so this will be more like $200. If either need replacing then more. I had to have a front made and I think it was like $350. It's been a while so others might have newer pricing.

So if you factor the bellhousing ($100), Driveshaft ($300), Transmission ($200), Short shaft kit ($200), Clutch ($100) you end up around $900 and that hasn't paid for oil, gaskets and other misc. A Teralow kit is like $850. It doesn't come with all the bearings you need but it does have the gasket & seals. I have all the Timken numbers for the Dana 20 bearings so you end up at about the same money without the driveshaft angle issues and transfer case shifter issues (it ends up moving back toward the seat which will require something to be fabricated).
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