Confirm what axle I have?
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Member
Joined: Dec 2007
Posts: 52
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From: The Colony/Wichita Falls, TX
Confirm what axle I have?
I have a 99 f150 4x4. I've been told back in fourth that i have a 9.75in or 8.8 in. Its a 12 bolt oval shaped diff. It has 3.55 gears and I'm trying to find a R&P gear and install kit for 3.73's. HELP!
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Joined: Oct 2008
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From: Fort Myers, FL
If you have the 5.4 you should have the 9.75. A pic would definitely help though. The 8.8 is very round looking, whereas the 9.75 is a little misshapen, more rugged looking
8.8
http://www.mike-g.net/jeep/yinyang/grin2.jpg
9.75
http://image.off-roadweb.com/f/85282...ear_axle_z.jpg
8.8
http://www.mike-g.net/jeep/yinyang/grin2.jpg
9.75
http://image.off-roadweb.com/f/85282...ear_axle_z.jpg
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Member
Joined: Dec 2007
Posts: 52
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From: The Colony/Wichita Falls, TX
i always knew i had the 9in, but the guy yesterday at Summit assured me it was the 8.8. But i called today again and a new guy confirmed it was the 9. No worries, got my gears on their way!! and a tuner on monday!