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TTB Swap to Solid Axle - Dana 60?

4790 Views 11 Replies 4 Participants Last post by  jrgrtx
Ok guys. I know there is info all over the web on this but I keep finding scattered and conflicting info. Here's the deal: I have a 1997 F250 HD 4x4 7.3 powerstroke (older square body). Axle code on door sticker is 39 which = 3.55. I want to swap out the TTB with a solid axle, so I'm guessing Dana 60. Here's my dilemma and questions and I apologize for the ignorant questions up front. I've never done this.
1) I can't find a 3.55 front axle in Dana 60 anywhere. Does it have to match the rear 3.55?
2) What is the best year models to target to find one?
3) Anyone have a good source for one? Complete assembly ready to go.

I appreciate the help.
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What size tire's are you running? Keep in mind that you will want the f350 front springs also even though you already have a lift. If you use the 350 main springs with the lift spring you have under the 250 springs now it will ride a little better. Also a Dana 60 is going to lift the front of your truck almost 2 more inches. 4.10 gears are a lot easier to find especially when it comes to F350 4x4s
With 35s and 3.55 gears I take it that you never tow or haul anything heavy and you are a flat lander. My truck like many of the f250s came with 3.55 gears but with the weight I tow and living in the mountains I made the switch to 4.10 gears and glad of it. I ran a 4" lift and 35s on this and other obs trucks and didn't have problems with them but I always change all the bushings to poly. The biggest reason I switched to a Dana 60 was it kinda fell into my lap with a price I couldn't refuse.
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