rear gears? whos got em, and where did u get em

spiffdank3.7 · #1 12-06-2005, 02:44 AM

do you like em, do they make a big difference in mpg, where did you get em,

cajun ram · #2 12-08-2005, 11:01 PM

I am guessing you have a v6 i have one also i have been trying to find out what size gears are in the rear diff does anyone know

stantjeeper85 · #3 12-09-2005, 02:04 PM

my jeep has a tag on the diff that says what, but my dodge does not, my guess would be to check the owners manual, havent had a chance to do so yet.

eltupac · #4 12-09-2005, 02:41 PM

3.21 are stock for my 2005 ST V6. I am sure it is for all V6. If I would have known, I would have asked for a 3.55 or 3.92. The 6th gear helps with the RPMs. It was only $50 more, now it would cost $500-$1000 to do it.[:@]

cajun ram · #5 12-10-2005, 07:17 PM

I looked at the sticker in the glove box and it said 3.55s

HemiMan4451 · #6 12-12-2005, 01:13 AM

I'd say go with 3.92's or a bit higher, you accelerate better and tow more.

spiffdank3.7 · #7 12-12-2005, 05:52 PM

what about 4.10s i think that 4.56 would be to high for a normal truck, even though my truck now will do 90 mph at 2700 rpm, how do i figure out what it would be with 4.10s

HemiMan4451 · #8 12-12-2005, 07:28 PM

You'll lose a few mpg, but the accelerating power and towing will be worth it. 4.10's would be nice I think.

stantjeeper85 · #9 12-13-2005, 08:29 PM

I dont have a sticker in my glove box, cant find anything in my owners manual either. Im assuming i have around 3.55 though. Whats the largest saize that can fit in these axles? i know 4.88 in a dana 35, so it must be at least that.

spiffdank3.7 · #10 12-13-2005, 10:03 PM

yeah 410s sound good, hemi man, on a scale of 1-10, how hard are rear ends to work on, iv replaced the spider gears and axle shafts in chevys, but that is it, do you think its worth the instalation money ill save to do it myself?