Rear End Swap

[skippyf16]

Will a 78 F250, 2wd rear end direct swap into a 69 F100, 2wd?

Thanks,

Jason

[Canonman67]

You'll have to move the spring perches but I think that's all.

[ultraranger]

F100 would most likely be a 9-inch rear end with 5-lug axles. F250 rear end would be a Dana 60 with 8-lug axles. --completely different rear ends.

[Canonman67]

Good catch Ultraranger, I totally missed the difference in tonnage. Apparently I was On the job.

[skippyf16]

So people dont put 3/4 ton rear ends under 1/2 ton trucks?

[Canonman67]

You end up with a five lug front end and an eight lug rear which most people don't want.

[Bunkerhillbilly]

73 to 79 rear ends are 4" wider also. Might not have room for tires

[ultraranger]

The Dentside 9-inch rear end into a Bumpside is a common swap. You would just need to move the leaf spring perches and the lower shocks mounts over 2 inches on each side of the Dentside rear end housing.

This will put the rear wheels/tires out to the same track width distance as the front wheels.

[mk]

Dana 60s with five lug axles were also an option on the F100s. Rarely seen, though. Parted out a '67 with a 352 4 spd and dana a few years ago.


mike

[ultraranger]

Dana 60s with five lug axles were also an option on the F100s. Rarely seen, though. Parted out a '67 with a 352 4 spd and dana a few years ago.


mike

If the Dana rear end had 5 lugs and was under an F100, it would be a Dana 44 instead of a Dana 60.

[mk]

Not necessarily... mine was definitely a 60 by tag and casting. They used both types in the F100s; there's a beautiful original '67 Merc 100 around here with a 44. These were used in the light Ford trucks long before Chrysler tapped Dana for them to throw under the hemi cars.


mike

[ultraranger]

Not necessarily... mine was definitely a 60 by tag and casting. They used both types in the F100s; there's a beautiful original '67 Merc 100 around here with a 44. These were used in the light Ford trucks long before Chrysler tapped Dana for them to throw under the hemi cars.


mike

Did the rear end have a locking differential?

[mk]

Honestly can't remember...six years ago... kind of ticked at myself for not even getting a pic of it; was a pretty busy summer


mike

[mk]

Just ran across the door tag I kept after scrapping the '67 F100. It shows a nov '66 build(A47xxx) with a 352, T18 warner 4 spd(F) and a dana 60 3.54 locking diff(E9).

mike