Sry guys, I know that this conversation has been beat around 100 times in here but I need a definite answer. I pllan on getting a 6in Fabtech lift for my 4x2 04 F150, I also will be getting 35" tires with new wheels as well ( maybe mickey thompson) My question is, will I need to purchase new gears to help compensate for the new suspension and what size backspacing will I need to get for the wheels. thanx for the help!

 

The suspension has nothing to do with the gears, it's your tires. If you want back to stock or a little better get up and go, you will need gears.

 

Yep, gears will be a great idea with 35's. I'd suggest a wheel with 5 to 6 inches of backspacing.

 

does anybody know where I can purchase new gears?

 

I was looking at purchasing mine from this site....

http://www.precisiongear.com/

 

I just finished my truck 6 fab lift 4X2 I am running 36 iroks on 20 panther wheels with 6" backspacing no rubbing

http://i59.photobucket.com/albums/g3...373_3300_1.jpg

http://i59.photobucket.com/albums/g3...797_3300_1.jpg

http://i59.photobucket.com/albums/g3...061_3300_1.jpg

 

wut kinda gears are u looking on putting 4:56? 4:88's? im planning in near future to put maybe gears first then lift and tires ........ ?

 

i'm lookin for probably 4.56 but Im still shoppin arond tryin to fid a good buy

 

I think I'm a little confused, since I have never dealt with gears before,haha, which one of these should I look at:

http://www.jawsgear.com/store/catalo...p?cPath=21_106

 

anybody? I'm outta my league when it comes to gears

 

4.56 gears will be a good ratio for 35's. but you need to figure out what rear diff you have. my guess is you have the 8.8 since you're runnin a v-6.

 

actually Im runnin a V8

 

sorry, i thought i read you had v-6. my bad check www.4wheelparts.com i'm sure they would have a decent gear calculator to figure engine rpms at different vehicle speeds for various tire sizes.

 

Also check this...http://www.ring-pinion.com/

 

4.6 motor has the 8.8 rear end
5.4 motor has the 9.25 rear end