Advise on the different rear ends

[pro99line]

Originally Posted by timmy

First off I'd give Discount Power Parts a call, they seem to be able to get anything you could need! If they cant help I've dealt with Randy's Ring&Pinionin the past with good results (1-866-607-2094).Another good place to look is Drivetrain Warehouse(888-432-7656). This project with installation is probably going to run you around $1500, have you considered adding an overdrive unit? They cost twice as much but you can take them with you when you sell the truck. I tow quite a bit during the winter and I'm seriously considering adding one, its like running a double overdrive when your empty.

If you find the overdrive unit please post a link. I have been looking for one. I thought about going in that direction. That way wen I want to pull I still have my gears and when I am on a long trip I have the extra overdrive. It is like having the best of both worlds.

[timmy]

http://www.gearvendors.com/index.html not sure they list our application but I have spoken to them before and its available. Advanced Adapters also has one but I would steer you towards the gear vendors unit

[pro99line]

That is an interesting unit. I calculated and with me currently having 3.73's I run 1827 rpms at 70mph. With this unit it would drop to 1415 rpms at 70mph. I am sure that would save some gas but I am curious how the truck will do at such a low rpm. Thanks for the link. I also calculated and if I changed to 3.55 gears it would be 1741 rpms at 70mph.

[timmy]

Thats pretty much the same as running a 36" tire with a 3.73 gear, the motor will pull it fine so long as your empty. Had 33s on my 04, turned around 1600 at 70, and I pulled a lot of weight behind that truck.

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Last edited by timmy : 07-19-2006 at 01:42 PM.

[super_stroke]

if all else fails and cost is a factor you might hit the bone yards and see what the going rate for a front and rear axle cost. or they might sell just the gears out of it. around here the yards will some times work with you like that.

[pro99line]

These are all very good ways of accomplishing the same task. Here is the link for the calculator I have always used for calculating these types of things.

http://www.4lo.com/4LoCalc.htm