Rear End Swap

Clutch, transmission, rear axle

Moderators: FORDification, 70_F100

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skippyf16
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Rear End Swap

Post by skippyf16 »

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

Thanks,

Jason
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Canonman67
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Re: Rear End Swap

Post by Canonman67 »

You'll have to move the spring perches but I think that's all.
ultraranger
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Re: Rear End Swap

Post by 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.
Steve

1969 SWB F100 Ranger. 240-6, C-4, 9" N-case 31-spline Traction-Lok w/3.50 gears.

1968 Mustang. My high school car. Owned since 1982.

2003 Azure Blue Mustang Mach1.
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Canonman67
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Re: Rear End Swap

Post by Canonman67 »

Good catch Ultraranger, I totally missed the difference in tonnage. Apparently I was :zz: On the job.
skippyf16
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Re: Rear End Swap

Post by skippyf16 »

So people dont put 3/4 ton rear ends under 1/2 ton trucks?
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Canonman67
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Re: Rear End Swap

Post by Canonman67 »

You end up with a five lug front end and an eight lug rear which most people don't want.
Bunkerhillbilly
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Re: Rear End Swap

Post by Bunkerhillbilly »

73 to 79 rear ends are 4" wider also. Might not have room for tires
ultraranger
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Re: Rear End Swap

Post by 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.
Steve

1969 SWB F100 Ranger. 240-6, C-4, 9" N-case 31-spline Traction-Lok w/3.50 gears.

1968 Mustang. My high school car. Owned since 1982.

2003 Azure Blue Mustang Mach1.
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mk
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Re: Rear End Swap

Post by 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
Always drink upstream from the herd...

~Will Rogers

Mercury truck ID thread:
http://www.fordification.com/forum/view ... =2&t=35331
Ford truck model history:
http://www.fordification.com/forum/view ... =2&t=37394
Using dentside fender liners:
http://fordification.com/forum/viewtopi ... =7&t=35675
Matchbox diecast bumps:
http://www.fordification.com/forum/view ... =2&t=45618
ultraranger
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Re: Rear End Swap

Post by ultraranger »

mk wrote: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.
Steve

1969 SWB F100 Ranger. 240-6, C-4, 9" N-case 31-spline Traction-Lok w/3.50 gears.

1968 Mustang. My high school car. Owned since 1982.

2003 Azure Blue Mustang Mach1.
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mk
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Rear End Swap

Post by 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
Always drink upstream from the herd...

~Will Rogers

Mercury truck ID thread:
http://www.fordification.com/forum/view ... =2&t=35331
Ford truck model history:
http://www.fordification.com/forum/view ... =2&t=37394
Using dentside fender liners:
http://fordification.com/forum/viewtopi ... =7&t=35675
Matchbox diecast bumps:
http://www.fordification.com/forum/view ... =2&t=45618
ultraranger
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Re: Rear End Swap

Post by ultraranger »

mk wrote: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?
Steve

1969 SWB F100 Ranger. 240-6, C-4, 9" N-case 31-spline Traction-Lok w/3.50 gears.

1968 Mustang. My high school car. Owned since 1982.

2003 Azure Blue Mustang Mach1.
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mk
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Rear End Swap

Post by 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 :doh:


mike
Always drink upstream from the herd...

~Will Rogers

Mercury truck ID thread:
http://www.fordification.com/forum/view ... =2&t=35331
Ford truck model history:
http://www.fordification.com/forum/view ... =2&t=37394
Using dentside fender liners:
http://fordification.com/forum/viewtopi ... =7&t=35675
Matchbox diecast bumps:
http://www.fordification.com/forum/view ... =2&t=45618
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mk
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Rear End Swap

Post by 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
Always drink upstream from the herd...

~Will Rogers

Mercury truck ID thread:
http://www.fordification.com/forum/view ... =2&t=35331
Ford truck model history:
http://www.fordification.com/forum/view ... =2&t=37394
Using dentside fender liners:
http://fordification.com/forum/viewtopi ... =7&t=35675
Matchbox diecast bumps:
http://www.fordification.com/forum/view ... =2&t=45618
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