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1 ton axle swap questions

24K views 24 replies 4 participants last post by  aw12345  
#1 ·
Alright, well iv been searching and searching and reading different 1 ton/ and 3/4 ton swap threads. And i have a few questions. I plan on keeping my 39's and I'm running a 351w and c6 auto tranny. Not sure on transfer case haven't looked yet, as i just got the jeep. It has 39's on stock axles and its lifted with soa and shackles. Im 6'5 and the floor is a little above my waste. So anyway, i plan on going to 1 tons. The HP dana 60 out of the 78-79 fords seem to be the easiest if I'm not mistaking. Now for my questions.

-Should i stretch it (front and rear) with waggy springs?

-Am i going to have to shorten the axle? Or can i leave it and move perches? or will it match up?

-I can't find a thread on the steering set ups for these axles. What will need to be done or is there a thread going over steering with this?

Those are the questions I have right now on the front. Now the rear, id prefer to have a driver side drop like i do now, and if I'm correct the 14 bolt isn't a driver side drop. So should i just go with a matching dana 60? And like above stretch it with waggy springs.

If anyone can answer these or know of a good write up on this swap that would be great. Iv been searching for something thats matching around what I'm going to run. Thank you.
 
#12 ·
Yes there are two different spring pin width ford 60s. The 78-79 are within a 1/2 inch of the stock jeep one but the 85-91s are 3 inches wider. I used a 79 one. Out boarding springs means you love the mounts from under the frame to the outside. The tcase doesn't care what rearend is in it.
 
#16 ·
You can use any transfercase as far as the rear axle is concerned, you either alter the driveline, use conversion u joints or swap either the axle yoke or slip yoke to make things work. For the front yo want to decide what transfercase and axle you want to use.
Say if you want deeper gearing than 5.38. You would want to look for a Chevy D60
Those you can gear to 5.86:1, then you would want a passenger drop transfercase.
Lots a choices, lots a different routes to go
 
#23 ·
The first big question that begets an answer is what is the ultimate goal of your Jeep. That should pretty much determine everything else within your available budget.
Did the work on the YJ for a friend.
My put put Jeep is a TJ with 1 tons
Took 11 months of my life to built, but I have so much fun with it, that it was worth every dime and every minute.


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