8.8 Rearend tag info
Posting Guru
Joined: Jan 2002
Posts: 1,346
Likes: 8
From: Baltimore
Tag shows you have 3.55 gears, 8.8 ring gear, Build date March 10, 1993.
Pinion shaft is 7/8 inch.
I believe Ford stopped using the 3/4 inch pinion shaft on the F150 8.8 rears around late 86 to early 87.
Pinion shaft is 7/8 inch.
I believe Ford stopped using the 3/4 inch pinion shaft on the F150 8.8 rears around late 86 to early 87.
Posting Guru
Joined: Jan 2002
Posts: 1,346
Likes: 8
From: Baltimore
I'd recommend you use a small propane torch and heat up the Pinion Lock Pin to loosen the thread locker before you try to remove the bolt. If you don't there's a good possibility the bolt will shear and you'll need to drill or cut out the remainder of the bolt.
The bolt snapped on me when I was installing my Powertrax locker and I had to use a oxy acetylene torch to cut a groove in the Pinion Shaft to get the remainder of the bolt out.
You should be able to reuse the old Pinion Shaft but always install a new Pinion Shaft Lock Pin which will come coated with thread locker. Torque the new bolt to 15-30 ft. lbs.
The bolt snapped on me when I was installing my Powertrax locker and I had to use a oxy acetylene torch to cut a groove in the Pinion Shaft to get the remainder of the bolt out.
You should be able to reuse the old Pinion Shaft but always install a new Pinion Shaft Lock Pin which will come coated with thread locker. Torque the new bolt to 15-30 ft. lbs.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 785
From: Simi Valley, CA
It's very common for that *&@^$ pin to shear off...very common.
D8BZ4241B .. Lock Pin
MSRP: $2.12 / ftepartsguy.com price: $1.52.
The price is right, but getting the old sheared off pin out of the shaft is a PITA!
D8BZ4241B .. Lock Pin
MSRP: $2.12 / ftepartsguy.com price: $1.52.
The price is right, but getting the old sheared off pin out of the shaft is a PITA!
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