1978 J20 drive train swap into 79 CJ5 ??? - JeepForum.com
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Unread 07-29-2013, 08:09 AM   #1
billiardking
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1978 J20 drive train swap into 79 CJ5 ???

Would the axles , T18a tranny and transfer case
Swap into a stock 79 CJ5 what I'm asking is without any severe modifications I want to keep
CJ safe and streetable I need a motor and found a 78 j20 with good motor and 4 speed tranny and 3:73 gears with a Dana 60 rear and Dana 44 front
Just don't know the jeep axles just but

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Unread 07-29-2013, 08:19 AM   #2
billiardking
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Little more info I can move spring hangers and perches if needed just didn't know if these jeep axles under a j20 are two wide for the CJ5 but for a little more money than I was already gonna spend for motor I can get this jeep truck and use motor and drive train to upgrade from 3 speed to 4 speed and get 3:73 gears and a wider stance
Plus Dana 60 is Suppost to be a posi trac
Not looking for a how to just is this a common swap and can I still send the old lady to get groceries in the CJ5 when its done and not worry about it being safe
Any thoughts and info would be great
Thanks
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Unread 07-29-2013, 08:47 AM   #3
benullman
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where are you located? I might be interested in the j20 body/frame

Ben
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Unread 07-29-2013, 09:05 AM   #4
billiardking
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I'm in OKLAHOMA
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Unread 07-29-2013, 09:10 AM   #5
benullman
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Quote:
Originally Posted by billiardking View Post
I'm in OKLAHOMA
well darn, little to far for me!
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Unread 07-29-2013, 12:30 PM   #6
CSP
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If the J-truck has/had a V8 the input shaft of the transmission is going to be way too long for you to use it. The shifter would end up between the seats.
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Unread 07-29-2013, 12:41 PM   #7
jeepwhore
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And the axles are going to be much wider than the stock CJ axles.
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Unread 07-29-2013, 01:27 PM   #8
billiardking
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Ok thanks guys that's the info I'm looking for

So even tho my cj5 was factory with a 304 the tranny from jeep truck is pushed back future than the cj5 three speed ??

I was wondering about the axles but will probily pass on the j20 setup and just go with rebuilt motor and keep my stock axles and tranny for now
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Unread 07-29-2013, 01:42 PM   #9
jeepwhore
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Thats right. The T18 used in the Jeep trucks and wagons had a much longer input shaft and bellhousing. So it can't be used in a CJ without swapping the input shaft.
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'84 CJ-7: Yota axles (spartan locked front, e-locked rear) 4" BDS, 1" Daystar & 3/8" shackle lifts, 35" X-Terrains on steelies, YJ Tub & family roll bar, heater blower upgrade, 4.2L w/MC2100 & Team Rush, Warn 8274. Rebuilt 4.2/4.0 hybrid, AX15 and twin sticks/clocking ring waiting to go in.

The advertised position for a topless, dirty jeep girl has been filled......by my wife. Thanks to all that applied.
<------------and yes, that is her.
:-D
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