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I'd be interested in the price for this kind of project. Also, how does it effect your mid and top range performance? I've heard good things about Auburn Pro. Sounds like you have a nice setup. Ever take to the track?

 

Another option is going with a smaller diameter tire which will accomplish the same thing for less money (as long as you don't mind the change in appearance). You will still need to have the speedometer recalibrated, but this would have to be done with a gear swap so the cost is a wash.

Example: my stock tires are 275/60-20 (33" diameter) and by going with a 265/50-18 (30.43" diameter) it would be like changing my gear ratio from 3.55 to 3.85... not quite 4.10, but you can get a set of 4 tires for around $600 so it's certainly worth considering.

 

That is a very good suggestion. I actually thought about it, but then I will still need an LSD

 

I'll spare you of the nightmare I went through to get the gears & LSD in, but trust me when I say to do your homework and find a shop/guy that has plenty of experience doing gears. I lost track of how much I had to spend, but overall it should have been around $1500 for my 4x2. The Auburn was about $400, and I used MOPAR gears which ran me $670, and then about $350 for parts (master install kit) and labor. I could have saved some cash and bought aftermarket gears for around $300, but after the problems I had, I wasn't willing to take a chance.

I've never taken the truck to the track, but it drives a lot better. It's damn quick off the line and improved in the mid and high ranges. The gears made the RPM go up for all the speeds, but nothing crazy. At 65 I'm running in the 2000 RPM range, which is only slightly up from when I had the 3.55 gears in. I know a lot of people will put down gear swaps saying that you'll burn more gas. My MPGs actually went up 1MPG after I put the 4.10s in. Of course that's all based on a lot of factors, but since I tend to drive the truck in the city most of the time and I'm a little lead footed, I think the truck doesn't have to work as hard to meet my driving style.

 

I actually do a lot more city (in traffic) driving than highway, so I hope to actually get better MPGs with 4.10 gears.

And yes, "fear" of not knowing how will everything be installed makes me stall my project more than the $ side. I have no experience with Dodge shops in Georgia.

 

I found the shop that fixed my botched install through one of my local dealer's service departments. I called and talked with a service writer and explained to him what I was wanting, what had happened with my screwed up 4:10 installation and he pointed me to the shop that I ended up using. Turns out the dealership farms most of their gear work out to that shop. The place was on a rough side of town, but you couldn't find nicer guys. They were honest and did exactly what they said they'd do.

If you can find one, take a look through the Yellow Pages for shops. Look for a shop that specializes in gears, or does very little outside of gear work. For instance, the guys I took it to only do transmissions and gears.

 

Best price I can find is 1400 for parts and 1000 labor for both axles.

 

For those with a 4x2, it may be worth while to look at purchasing the entire assembly from Dodge. - http://www.moparonlineparts.com/part...layCatalogid=0

 

Only with tire size change does speedo need recalibration.NOT with a gear swap.Speedo reads off the tone wheel thats bolted to the differential carrier.