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Hey look ~ they ~ bounce!
Joined: Sun Oct 22nd, 2017
Location: Evansville, USA
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OK you said it is a "ford unit" already set up... is it out of a Ranger, and is it out of a 4.0 motor ranger.
With few exceptions, the 4.0 rangers had a 8.8 rear gear, the 3.0/2.5 had a 7.5. The 8.8 in the rangers was a 28 spline axle. If the 8.8 isn't out of a Ranger it is probably for 31 spline axles. The only Rangers with 31 spline axles were the 99 + 4.56 geared rear ends.
So if the LSD is out of an expo, F150 or Mustang the guts are set up for 31 spline and your axles will not fit.
Sorry if you already knew this no telling what someone knows.
I have a 2003 EDGE 3.0L model. I pulled my build sheet off of the etis.com site. I noticed it stated an 8.8" 4:10 axle (open diff, unfortunately). My son didn't believe that, so he went out and crawled under the truck. Sure enough, it is 8.8 with 4:10 gears. I had a 2001 EDGE with 4.0L, but I don't know what axle it had. Anyway, there is one exception...
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-- Michael
2003 Ranger Edge / Extended Cab / Flareside / 3.0L FLEX / 5r44e Auto / 2WD / 8.8 LS 4:10 / Sonic Blue Pearl
So many mods... so little time...