88 f150 8.8 has 31 spline axles right?

im looking at a L/S diff. out of a mustang or f150 on ebay.... with 3.73 gears

 

Correct, they are 31's. Most 8.8 Mustangs will have 28 spline shafts unless they had installed 31 spline shafts or the L/S is out of certain model year Cobras....

 

Should be 31 but you can double check with this chart.
http://www.pirate4x4.com/tech/billav...on%20chart.pdf

 

FORD 8.8 3.73 GEARS & 31 SPLINE POSI UNIT MUSTANG F-150 on eBay!

thats the one im looking at

 

The trucks are 31 spline , the mustang is 28 spline , ...Lew

 

...Thats the one you need , the 31 spline..

 

k thanks

 

Why do you want a spool?

 

X2! Not a good idea on a street driven rig. I've tried it(in a 9inch) I broke the crosspin, the carrier, and axle shafts. Then went to a full spool, and broke that in half. So, I put a lock right in and had good luck. I'm running a aussie locker in my 8.8 and love it!

 

Yeah i thought you were looking at the posi , don't get the mini spool , not made for the street , a detriot tru trac would work nice....

 

someone bought it it was a LS diff with 3.73 gears

 

OEM FORD 8.8 31 SPLINE TRACTION LOK POSI UNIT MUSTANG - eBay (item 380287386527 end time Dec-08-10 19:23:57 PST)

 

Oh Man, that would have been a cool upgrade?