How can i tell the ratio of my rear end? I have a '99 F-150 xlt flareside, extended cab, with the 4.6L, the owners manual has either the 3:08, or the 3:55, but it doesnt specify one, any advice?

Thanks again...josh

 

What is listed on your door tag?

 

jack the truck up USE JACKSTANDS!!!...put a mark on the driveshaft and one on a rear wheel...spin the rear one revolution and count how many times the driveshaft goes around...3 and 1/2 times around =3:50's and 3and 3/4= 3.75 ...works with any ratio.. happy counting!...zap!

 

Or you could crawl under your truck and look at the diff tags.

 

hmm, sounds rpetty involved, thanks guys

 

Yeah, it is rather involved to open the driver's door and look at the sticker. I tried it once but strained my shoulder.

 

Yea, one time i was tryin to look at my tirepressure capacities(sp?), hada get my friend to help me get the flippin door open, while he held it open, i hurried up and looked at the sticker, almost lost an arm on that one.

 

W.T.F. ...zap!

 

Zap-
It's sometimes referred to as 'humor'. And I must admit I enjoy dry, sarcastic wit. Well done, SJ!

 

i do what i can.

 

ok ok good job!!!...zap!