Possible Tranny Swap
Possible Tranny Swap
- Thread starter CJeff7
- Start date
CoreyYoungCj577
Senior Jeeper
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- 1977 cj7 232 inline 6,Dana 20 Tc,T-150 Trans, stock diffs.
but you can pull them from a ford a dime a dozen and yes a website check NOVAK ADAPTERS
CJKrawler
Old Time Jeeper
Check www.novak-adapt.com/ . The have a wealth of knowledge, and will be able to help you out if you need any additional parts.
Tommy
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- 1981 CJ5 258 I6 engine, T18A Transmission, Dana 20 Transfer case, AMC 20 rear end, Dana 30 up front.
There are three previous threads here that are dedicated to this type of swap. You may want to go back through them and see what else has been posted on this. They are:
fj20-T-18 -CJ5 -swap-3373
T-18 -question-4765
will-T-18 -bolt-direct-replacement-T-150 -a-4602
I did a swap of a T-15 to a T18A in my '81 CJ5 with the I6 AMC 258 i6 / 4.2l . My T-18 came out of a V8 '76 J20 pickup and had a long input shaft. so some of the T-18 's were behind V8's. The input shaft is key for your swap. Not only the length but the splines to. I had to put in a shorter input shaft with a different spline count which also necessitated a different clutch assembly. That part of the swap is pretty straightforward. Because of the length,width and height differences in the Transmissions, the drive shafts have to be changed, shortened on the rear and lengthened up front, and the skid plate/Transmission mount had to be moved or customized to match up with the new Transmission . It ran me about $900 to get it all done, doing most of the work myself. Knock off about $275 for the cost of the Transmission and Transfer Case on E-Bay and that's a rough estimate of what you are looking at. You also need to see if your Transfer Case will bolt right on or if you need an adapter. I have to say that although it was not real easy, knowing what I know now after going through the Rubicon with it both with the T-15 and T-18 , I would do it again. I can't think of a better improvement for off-roading for the cost.
Hope this helps.
Tommy
fj20-T-18 -CJ5 -swap-3373
T-18 -question-4765
will-T-18 -bolt-direct-replacement-T-150 -a-4602
I did a swap of a T-15 to a T18A in my '81 CJ5 with the I6 AMC 258 i6 / 4.2l . My T-18 came out of a V8 '76 J20 pickup and had a long input shaft. so some of the T-18 's were behind V8's. The input shaft is key for your swap. Not only the length but the splines to. I had to put in a shorter input shaft with a different spline count which also necessitated a different clutch assembly. That part of the swap is pretty straightforward. Because of the length,width and height differences in the Transmissions, the drive shafts have to be changed, shortened on the rear and lengthened up front, and the skid plate/Transmission mount had to be moved or customized to match up with the new Transmission . It ran me about $900 to get it all done, doing most of the work myself. Knock off about $275 for the cost of the Transmission and Transfer Case on E-Bay and that's a rough estimate of what you are looking at. You also need to see if your Transfer Case will bolt right on or if you need an adapter. I have to say that although it was not real easy, knowing what I know now after going through the Rubicon with it both with the T-15 and T-18 , I would do it again. I can't think of a better improvement for off-roading for the cost.
Hope this helps.
Tommy
CJeff7
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- 1978 CJ7 Renegade, Sand Tan, Blue Levi Edition, Blue Whitco top, 304, T-18A, Dana 20, completely stock
Yes!!! Thanks very much for the replies. I really think I'll do the swap. Having that low "granny gear" will really make a difference.
Jeff
Jeff