I have a 98 ram 4x4 the 5.2. Stock gearing. Up front I have the stock dana 40 and a stock Chrysler (i think 9.75) rearend. I recently went with a 3" skyjacker lift and some 35's and I want regear it to pull the larger tires better. I was thinking about gettin 4:10s put in. What all is invovled and about how much would that cost?

Also I know this will decrease the top speed but by how much and what will it do to my mpgs?

 

I think I read somewhere on here that 4.56 are better for 35's, and for cost I think it could be any where between $800-$1500 becuase you have to do both axles.

I'm pretty sure someone that knows more about this will chime in.

 

man that is expensive I hope some one will I dont know that much about it but now that I got the tire size I want it feels a little sluggish and I wanna do a few mods to squeese what little gas mileage I can out of a truck with 35s and get a little of that touque back. I can deal with it if its gonna be more than 1k but if I can do it for under that It would be worth it to make feel like stock again.

 

If your truck is like most 1500's, your front is a Dana 44, and the rear is a 9.25.

I had 4.10's with my 285's, and it was great. Then I put 35's on, and I was hating life. Truck couldn't even stay in OD. Slightest hill or even a head wind, and the truck would downshift. I went to 4.56, and all the power came back. It is great. Feels very much like stock, probably even better (been so long since my truck was stock). Highway RPM's are completely acceptable. I kinda wish sometimes that I had gone with 4.88's instead since I don't really ever drive on the highway much. Fastest roads I drive on are 60 mph. I get on the interstate every once in awhile, and driving 75 isn't a problem.

It will cost you though. In my area, it runs $600-$700 per axle for parts and labor.

 

If u or a buddy can do them yr self look at this.
http://completeoffroad.com/c-69615-d...-packages.html

 

i was quoted both axles 4.56 gears parts and labor for $1300 and thats the cheapest ive seen

 

When I did my 99, its was 1900 for both axles, including a Pro Loc for the rear.

 

I have been quoted $900-$1000 for the labor for my axles. The 9.25 rear isn't bad, only about 1/3 of the cost. The rest is the Dana 44, you have to basically take the front end out to do that one.

 

You need to find a better shop, because that's not necessary at all. I watched mine being done both times, and it was the same as the rear.

 

Because the D44 uses carrier bearing shims instead of adjusters like the 9.25 and on top of that the shims are under the bearings, so every time you need to change the shims you have to press the bearings off and on, it will take more labor, but the whole axle doesn't need to be removed