hey hopefully i did this right first thread trying to create i got a 1998 dodge durango slt+ 5.2l tow package and all the goodies but the reason why im posting is that i have 33x12.5r15 tires and planning to go up 3 more inches with 35 inch tires and i wanna do the gearing before that but im lost on what ones to get i heard 4.11s but im thinking 4.56s but im kinda lost on what exactly i gotta do meaning do i have to change the front diff as well and which ones to get hopefully you guys can help me out i would appreciate it thanks.

 

what gears do you have now? and yes you have to change the front diff gears when you change the rear

 

im pretty sure there either 3.55 or 3.92 not 100% sure

 

you have 3.55s of 3.92s, (those were the only ones offered, you gotta figure out what you got, and decide what kind of change you expect out of it to decide which gears to get)

now i would like to know exactly what kind of suspension work you plan to do in order to make 35s not only fit, but to avoid replacing your front C/V shafts with every set of tires???

 

Look at the back cover on the rear diff and see it it has a tag that says 3.5 or 3.9 and that will tell you which one it is. If it is missing look under the hood by the latch on the hood and it should tell you or inside the glove box on a label.

 

i got 3.92s so ill prob go to 4.56?? i got a 4 to 5 inch suspension lift between the torsion bar keys and the leaf springs arced and shackles and i got 33s now i wanna do a 3in body so i can fit 35s and that way i dont have to do any control arm drops cross member work or any serious suspension work

 

cranking the torsion bars (or buying torsion keys, they have the same effect, only difference is cost) only gets you 2 inches, with the 3inch body lift on top of that it is a TOTAL of 5inches, i dont think thats enough to clear 35s get in touch with duranged408, he is the expert on lifts/off roading

 

I don't know about "expert" but he defiantly is the man you want to talk to.......

 

well the local expert then, idk of anyone else in this section who knows more.

 

i already got the torsion keys installed and the shackles and im about 4 inches up right now just with that done and the shackles and springs rearched in the rear and i got 33s on it no problems with rubbing so im pretty sure if i do the 3 inch nody ill fit 35s but im still gonna look into it more but i still wanna do gears to help with gas mileage with the 33s lol thanks for the help i appreciate it