Differential Differances
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Postmaster
Joined: Jun 2007
Posts: 2,795
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From: Rogue River, OR
Differential Differances
I was at my local Pick-n-pull (Salvage yard) today and found a couple of older F250's in the late 80/early 90's.
How can you tell what differential is installed in these trucks. There was not a tag, plate or post-it note to be found. Is there a way??
Rog
How can you tell what differential is installed in these trucks. There was not a tag, plate or post-it note to be found. Is there a way??
Rog
Post Fiend
Joined: Apr 2004
Posts: 12,835
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From: Silver Lake Dunes, MI
yes all pickups from the 80 and newer have sterling 10.25. not sure the year they started but it started early in the 80's. they will all be they same as long as they are 10.25 with ezception to gear ratio and limited slip or open.
Senior User
Joined: Apr 2004
Posts: 185
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From: Taylorsville, KY
I used to have an 89 that had the sensor. I think that 87 was the first year that ford used them. when I look in my parts catalog at work (NAPA) they also say that 87 was the first year that the sensor was an available part for ford trucks.
Franklin
Franklin
More Turbo
Joined: Jul 2005
Posts: 579
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From: Auburn, CA
From what I am gathering, there is short pinion before I think early 1993 back and long pinion after late 93.
The other difference is the way the driveshaft attaches to the yoke. Some yokes are threaded using just bolts to attach the u-joint and some are not threaded requiring nuts and bolts. I am told that the two different yokes will not interchange with each other because of the driveshafts.
I'm thinking that the threaded yoke is the more heavy duty.
Besides bearings getting better in the later diffs that's all I think I know so far.
Work in progress...
Vince
The other difference is the way the driveshaft attaches to the yoke. Some yokes are threaded using just bolts to attach the u-joint and some are not threaded requiring nuts and bolts. I am told that the two different yokes will not interchange with each other because of the driveshafts.
I'm thinking that the threaded yoke is the more heavy duty.
Besides bearings getting better in the later diffs that's all I think I know so far.
Work in progress...
Vince
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