F-150 8.8 rearends?? - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 11 Old 08-27-2002, 09:59 PM Thread Starter
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F-150 8.8 rearends??

Hey guys,
I have a 94' F-150 with a 8.8 rearend. Are the axles 28 spline or 31?? I am assuming they are 31 spline but you know what happens when you assume!!!!
Thanks,
Ike

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post #2 of 11 Old 08-28-2002, 02:35 AM
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The Lightnings came with a 31 spline. I would suspect yours to be the same, but I'm not sure. - Brian


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post #3 of 11 Old 08-29-2002, 09:10 AM
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All ford trucks with a 8.8 are 31 spline

94 Lightning
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post #4 of 11 Old 08-29-2002, 12:36 PM
 
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yes they are all 31 spline. but why would you keep it? ford 9" from 79' an older truck will bolt right in, and some had posi's. Just look for one with 4.10 gears and you will set. I paid $100 for my 9" complete.
Jared
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post #5 of 11 Old 08-29-2002, 09:54 PM
 
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there is really no reason to swap to a 9in. the 8.8 can stand up to plenty of torque when built properly. its not worth the time or effort in my opinion. plus you would have to have an exciter ring made to fit the 9in due top the speed sensor in the rear end.
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post #6 of 11 Old 08-29-2002, 09:59 PM
 
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Quote:
Originally posted by blownlightning
All ford trucks with a 8.8 are 31 spline
Except Rangers Some of them had the all powerful 7.5"
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post #7 of 11 Old 08-30-2002, 01:37 AM
 
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You cannot swap a 8.8 from a truck. The pumpkin is offset and they use leaf springs, not the 4 link center pumpkin style of the mustangs.
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post #8 of 11 Old 08-30-2002, 01:47 AM
 
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yeah, I forgot that if you need to rig up something for the abs to still work... Up here in minnesota, no ones abs ever works from the salt. so I just said the hell with it. But to much work?? ive seen the 8.8 to 9" swap done in 4 hours with ALL the wrong tools, and a highlift jack.
Plus if you plan on draging the truck you will need C-clip elmin;s sooner or later. So now the 9" looks alot better. besides parts a much, much cheaper (espicaialy used) for the 9" Not only that, but they are very plentiful!! the pile mine came out of had about 30 of them.
Also how cool is it to tell some one you have a ford 9" rear end??
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post #9 of 11 Old 08-30-2002, 02:30 PM
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The truck 8.8 will accept passenger car internals. I had a FMS 3.73 gear set and tracklock diff installed in my '95 F150. The truck speed sensor ring fit perfectly on the ring gear. I actually get better milage with the lower ratio, it allows the trans to stay on OD longer, and the engine doesn't have to work quite as hard to maintain speed.

The Fauxstang. Dynacorn 67 fastback. Dart SHP 363, Close ratio Magnum 6 speed, 3.70 Eaton Truetrac in a fabricated full floater 9", SorT coil over suspension. Still in pieces.
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post #10 of 11 Old 08-29-2005, 06:34 PM
 
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92 ford f150 E40D trans want to use 9inch rear end

I have a 92 ford f150 with a E4OD trans, 5.0 efi, and a 9 in rear end with 4.11 gears and a locker. I need a way to make the speed sensor work.

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post #11 of 11 Old 08-29-2005, 07:12 PM
 
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never mind Im going to run the 8.8
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