How do the F150 and F250 driveline compare? Tranny, differentials, and transfer cases? Are they the same or different? Im planning on doing a hi horsepower F150 but want to see if it would be beneficial to swap in F250 driveline parts. This is reffering to the recent F150s and F250s from 97-04.

 

The superdutys use the 4R100 tranny. So does the Lightning. The Superdutys use a Dana 60 or 70 10.50 differential. The F-150 uses either a Sterling 8.8 or a 9.75. The weight penalty for using a 10.50 vs a 9.75 doesn't justify extra strength. The 9.75 should hold up just fine. Check out what the Lightning guys are using.

Regards

Jean Marc Chartier

 

In 97 they (F150,F250) both used the same E4OD and t-case. 98+ they both went to the 4r100 and still had the same -case.
92+ F250,350 SRW (except fpr the Light duty 250) used a Sterling 10.5 full floater rear end not a Dana. The light duty 250 used a unusual semi-floater with 6 or 7 lugs. F350 DRW used a Dana 70. Yes there are a few exceptions to the rule, I have owned two 96 250, 4x4, auto, PSD's with the same GVW at the same time and one had inboard drums and the other had outboard drums. I have seen a lot of drivetrain carnage but the 150's seem to keep their rear diffs in tact. I think mostly due to light trucks (read as not enough traction) and relatively low torque #'s. No I am not knocking the 150's, I said it was a relative term. Besides its torque combined with traction that breaks diffs. I would be more woried about the trans.

 

How much power are we talking about?

JMC