Originally Posted by drewactual
you will be fortunate to re-gear for less than $600/axle.. a matter of fact, plan for about $1k an axle.. that is $600 for ring and pinion, and master install/bearing kit, and install @ $400 per axle..
you don't want just anyone installing gears- they are about the trickiest job you can perform, and it takes experience to get them right.. it's the only job I won't consider doing myself.. and, you're only considering moving a marginal ratio, so it would take a long long time to make up the cost by raising the ratio (numerically dropping)...
If'n I was in your position, I'd advertise on your local Craig's List or other place people buy/trade/sell, and swap out entire axle(s).. there are going to be plenty of folks wanting to head the opposite direction as you (lowering gears to compensate for larger tires, as an example).. you can swap out axles a helluva lot faster and more efficiently than you can re-gear- and then you don't have to worry about getting the install right near as much..
I've seen brand new Yukon Ring and Pinions eaten alive in less than 1k miles.. I've seen covers taken off after break in to replace fluids and have gobs of metal on magnets.. If you do decide to re-gear your existing axles, for the love of God, find a reputable joint to do it, and one that backs their work...
if you were any closer, I'd consider swapping out with you..
Perhaps we should have an education session on the F450. The dana s110 is not like a d60 or d80. First and foremost is comes with a dropout center section. It came with either 4.30 or 4.88 gears in it in the F450. Its a totally difference beast and it is very much not swappable with anything but another F450 or possibly a F550 (but that's a dana s130). So the advertising on craigslist is probably not going to work.
Go here and put in your truck.
You will find that there are now 3.73 gears available from randys. Two years ago when I owned an F450 they did not carry anything for the s110. The 3.73 gearset is almost $700 by itself. The install kit is $300. The super 60 front 3.73 gearset is almost $400. The install kit is almost $300. Gears and install kits are $1700. Now figure that a shop is going to charge you at least $300 an axle per install (probably closer to $500), you are looking at $2300 to $2700 to regear both axles. If they are set up correctly, they will last a long, long time.
Honestly the 4.30 gear isn't a bad gear in the F450, its much better than the 4.88s that mine had in it.
Its going to take you a while to get that $2300-$2700 back in fuel economy.
mac 'options' gyvr