Want to regear

[65sixbanger]

Ok i really want to move forward and regear my truck to 4.10's. What is the best/most economical way to go about this. Should I find two complete axles or just regear it myself?? Another member is giving me his front 4.10 ring and pinion so all I would need to go that route is the sterling 4.10's.


Also, do I need to get the installation kits?

 

[sle2115]

Ok i really want to move forward and regear my truck to 4.10's. What is the best/most economical way to go about this. Should I find two complete axles or just regear it myself?? Another member is giving me his front 4.10 ring and pinion so all I would need to go that route is the sterling 4.10's.


Also, do I need to get the installation kits?

If you are going to re-gear, I would get the install kits. They make is simple because they have a new pinion nut, crush sleeve, pinion seal, and a bunch of shims for both the pinion and the carrier. I have a set of 4.10 gears that I'm gonna list on ebay but would take $50 for them if you are interested. They came out of an axle that was well taken care of and ran on synthetic gear oil. I used the limited slip carrier out of it and things looked brand new.

 

[65sixbanger]

Ok, I would be able to use my limited slip carrier right??? I will Pm you about the money.
I have only watched people do a ring and pinion job, never myself. IS it something you think I can handle?? I know I need to get the right tools for sure.

Thanks

 

[65sixbanger]

Before I do this, I would like to know if there is going to be a big difference from the 3.55 to 4.10 in towing. Right now, If I put a 5000# tractor on a trailer it does just fine but its a bit hard to take off. I am just looking to increase my towing capacity a tad bit more. What do yall think??

Also, I know my highway Rpms will be decreased alot so I plan to get a gear vendors in the future.

 

[TWeatherford]

You said your highway rpms would be decreased a lot, I assume you meant increased. I love 4.10's for towing, and actually prefer them for not towing either. Particularly for a CC 4x4 that usually has 500-1000 lbs in the bed 4.10s just help it be a little less gutless.

 

[bike-maker]

On mine, with 32" tires, the difference in RPM at 70 mph with 3.55 vs. 4.10 gears is 1950 RPM vs about 2300 RPM. It's worth the switch to 4.10s to me.

 

[65sixbanger]

Ya sorry about that I meant increased Rpm's.

What would yall do in this position? Should I buy new gears, or would used ones be ok???

I might get 35's so this should help out a little.

 

[smokin69]

4.10 and thirty fives will be right about at stock tire size with 3.55's

 

[GOOSE]

A brownie auxillary trans would give you what you need without the gear swap. Probably less money and a better substitute for a GV. The only downfall I see is the brownie is not useful in 4wd as they are usually spliced into the rear driveshaft. RLDSL seems to love his setup.

 

[65sixbanger]

Ya i wouldnt hesitate for a second, but the only problem is I have yet to find one here locally. Even if it gives me more gears, a lower final drive would still be ideal IMO. I could go even lower like 4.56 or 5.13 with a double overdrive. Now that would be a pullin SOB.

I am going to read every tech paper I can find on the internet of what the right way to install a ring and pinion is. I will be taking this truck to college next year so it needs to be done the right way.

 

[sle2115]

You will love them for towing! There is no comparison between two towing.

 

[GOOSE]

I can't blame you for wanting the 4:10's as I have them and a complete matching set of 3:55's. I can't even bring myself to swap out the rear for a comparo. I'm shooting for the4:10's and a brownie. You seem well versed in mechanics, a 20+ ton press and some dial gauges, I think you could do it. Also, I highly reccomend the install kit. Cheap insurance. Good luck.

 

[65sixbanger]

Ya I got the press just need to get a new dial indicator, I found some cool sites on R&P.

Contact Patterns;

http://www.differentials.com/images/pattern-ok.gif
http://www.differentials.com/images/pattern-sp.gif
http://www.differentials.com/images/pattern-dp.gif

Specs;
http://www.drivetrain.com/parts_catalog/ring_and_pinions/ford_10.25_ring_and_pinion_gears.html

So is there really that big of a difference between the two gears????

Thanks for the input,
i will probably make a new thread when I eventually start.

Last thing, I pressed the cam gear and lobe off the spare cam and gonna send it to Russ soon!!

 

[lpennock]

As long as you have a dial type inch pound torque wrench (can use a cantilever but not a snap type) and a dial indicator it isn't that bad of job. The sterling is external shimmed so it is fairly easy to setup. I think the Dana 50 might be internal shimmed which makes it much more difficult if you don't have setup bearings. It is a tedious job but not real difficult.

 

[Csgod0]

I dont mean to threadjack in the least, but in regard to re-gearing, does anyone offhand have, or know of a thread explaining what would be required labor-wise to accomplish this.