Front Axle Question

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Jan 12, 2026 | 09:21 PM

cooperkoh

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Trailering

Joined: Apr 2025

Posts: 23

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Front Axle Question

I have a cclb 86 f350 dually 2wd. want to put a solid axle under it. Is it possible to keep coils? i have a skyjacker 5inch lift on it now. What year dana 60 should i be looking for? i can get a 99 dana 60 with 373. Also i’ve been told i should change my gear ratio for my rear since i have 35 inch tires now. it has the 10.25 sterling rear whatever the stock ratio is i’ve been told isn’t right anymore.
edit. my ratio is 3.55

Last edited by cooperkoh; Jan 13, 2026 at 06:21 AM.

Jan 15, 2026 | 05:55 PM

Franklin2

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Joined: Jan 2001

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From: Virginia

If you want a bolt in front end, you will need to use leaf springs and a dana 60 from a 1986-1998 f350. Coils will be custom like I showed in your other post. 4.10's would be better for 35 inch tires, though you need to keep in mind the rpm that your planned cummins likes to run at. The ratio + the tire diameter should put the engine in the sweet spot, and all engines are different.