how many splines does my f150 have

 

i am going to assume you have the 8.8 rear axle. would help us out a lot if you posted some more info about the truck. the axle code can be found in the driver's side door jamb.

someone correct me if i am wrong but i believe that is the 28 spline axle. that is off an assumption though.

 

my bad its the 4.6 with the 8.8 axle code 27 and thats for the rear end

 

after doing some research it would seem you have 31 spline axles.

 

thanks alot man for your help i am getting a lsd and needed to know

 

glad i could help.