lifted97

I'm thinking about regearing my truck and putting a locker in the rear.... can I use the limited slip I have now in the rear and move it to the front? btw its a 97 f150 4.6

Burr

I pretty sure you wont be able to. Check and see what size the rear end is, if it has 12 bolts on the diff cover then its a 9.75 rear end and it will not fit. And i think that most V8s came with the 9.75. But, if it is 8.8 which i think has 10 bolts (maybe) then it may fit because the front is a 8.8 but I am unsure if that means it will fit. I know the front gears are reversed but I dont know if that means the differental does too. Hope this helps you out a little.

lifted97

I only have 10 bolts haha

lifted97

I'm thinking about going with this then for my truck
http://cgi.ebay.com/ebaymotors/FORD-...item4cf5efc697

Burr

That looks like a really good deal! If you where to put a limited slip in the front then that could cause you to get worse mpg, so it would be better if you didn't because you are going to get less mpg with the 4.56 gears. But it would be cool to have limited slip in the front.

lifted97

Why would I get less MPG? and I go to a college that gets loads of snow and I also wheel on the weekend so I was thinking that would help my truck out in the snow

Burr

So do you plan on putting a limited slip in the front? If so i misunderstood you. Well I guess the mpg depends on how you drive. And yes, a limited slip would really help you truck get traction in snow. It would be hard to get it stuck unless you went in some really deep snow.

lifted97

Yeah, Only if they can swap it from the back to the front...... but why would a limited slip up front cause less mpg?

akdoggie

It causes friction and draw on the whole system by engaging all the moving parts. You can figure 1-2 mpg loss. You will probably find that you will NOT like the locker in the front. It is hell to turn on dry pavement. Chev offered it as an option in 1971-72, and never offered it again. People were getting into accidents.

You will have 3 wheels pulling with a limited slip rear differential, so why so intent on having all 4 turning. I can't give you a name of anyone I know that has a front locker, except a monster truck that runs up here. Otherwise, it's not a very big option in snow country. The F150 with traction lock is more than sufficient.

akdoggie

Forgot. Front and rear diff's on F150's are reversed, so you can not use the locker from the rear in the front. The ring and pinions can not be used front to rear either. Hope that helps