Did you guys go with Mopar parts or aftermarket? I'm looking to do this if I free up sometime next week and was just curious what the preference was. Also, if anyone did go w/ dealer parts, do any of you have the part #s for the front and rear gearsets? thanks

-jimmy

 

Aftermarket. My rears are Yukon and I don't recall what my fronts are (4x4). Dealer wanted $2500 to do it. I had it done with aftermarket stuff for $1050.

 

Yukons in the front, Precision Gears in the rear. Cost around $1200 with install.

Major difference in acceleration.

 

Aftermarket it is. Thanks guys!

Hopefuly I'll have 'em ordered up and installed within the next week or two.

 

Well, I did the install today. I ended up using the Yukons up front and went with Richmonds in the rear. The acceleration down low is amazing...It caught me by surprise actually. It'll break the hefty Nittos loose on a kickdown and even rotate the tires a few turns on the 1-2 shift.

 

Whats your RPM now at 70MPH?

 

From what i remember it was around 2200 at 70. I'll doublecheck next time I hit the highway. The increase in RPMs isn't all that noticeable(to feel, obviously you can see an increase on the tach) until the higher speeds, like 90ish, then it's about 2500 RPMs, but still not uncomfortable. I rarely do any highway travel though, just took it up to speed on the roadtest for a few exits to make sure all was well. I'll def. take some notes this weekend and give some exact #s.

 

should be higher than that... I got 4.1 and I pull about 2050 at 70 MPH, with tires about the same size as the stock 20's

 

I checked this morning. At 70mph the rpm is exactly 2100 according to the stock tach. I'm running a 305/55/20, which I believe is around 33.25" tall.

 

Unless y'all recalibrated your speedo's (and I don't mean the one's covering your butt's ) you will not get a correct rpm reading. Could be a simple computer reprogram I'm not sure. With stock 17" tires and a stock 3.92 rear I'm running 2100 @ 70 mph.