So my spider gears are shot, 05 scab xlt 4.6 4wd. Current diff tag is 8.8 3:55 limited slip. The only rear axle assembly I can find locally is a 9.75 3.55. Anyone know if it will work? I haven't laid eyes on it but just wondered if anyone tried it yet. Thanks in advance!

 

Should work and be an improvement. I have not actually looked at the difference but it may require a change of the yolk on the diff or driveshaft. If that is the case I would grab the driveshaft that goes with the 9.75 diff.

 

It is a direct bolt in replacement assuming it's also from a 04-08.

Wayne

 

Guy at salvage yard said its on an 05 f150 still, swears it will bolt right on and work.

 

The three things that could require adapting are the brake lines, E-brake cable connections and the driveshaft, but from the previous feedback it sounds like a direct swap. You might need the U-bolts and plates from the donor vehicle. The 9.75 is a significantly stronger axle.

 

Everything is the same, it will bolt right in using all of your original hardware! Its would be a good idea to change the fluid in it before installing also.

Wayne

 

Ok thanks guys, I planned on taking the cover off at pick up and checking to make sure it isn't worn out like mine, also gonna slap some new hd shocks on it since mine are original haha they don't do squat!

 

Too bad a V-10 swap wasn't that simple!

 

Actually, they are doing "squat".