I want to run 37s on my Dodge. Soon I will be re-gearing to 4.88s. I'm planning on leaving the front diff open. Before the tires go on I'm replacing both hub assemblies, u joints, ball joints and pads and rotors.

Is it seriously necessary to swap to D60/70s to run tires that size? I'm not going any bigger.

It's not like I'm gonna be doing some serious rock crawling or anything. Truck will see light trails and loose sand beach driving a few times a year. That's pretty much it.



Any input is appreciated

 

Some have better luck than others.


Is it recommended? Nah

Will you survive? Yeah probably. Just expect to replace parts more often.

Would I do it? Nah

Has it been done before? Yeah

 

Ran the stock dana 44 with 37's and 38.5's for 6 years without issue. Finally bent the inner C. A year earlier I picked up a 60 for $300 and had it sitting in the garage, so it was easier and cheaper to just swap out the axles, instead of replacing the inner C. And I will say I was a lot harder on that 44 after I got the 60, since it would give me the motivation to do the swap

 

I think the 4.88's for the Chrysler 9.25 rear are getting hard to find too....

 

Yep.


A Dana 60 has *******ly every gear ratio and locker ever made available.


Why is v1rt u a l + ly considered a bad word? Lol

 

I was always puzzled by that as well...... No clue what its all about.

 

Newman is probably the best metric on this aspect. It really just comes down to being on top of your rig with maintenance and experience in what you're driving around on. The open 44 with larger tires is way more foregiving.

The kind of 37 inch tire matter too, among other factors. Of the terrain you describe, probably sand would be the most challenging. Throttle and momentum.

Searching around here...people running 37s and immediate breakage is few and far between. The few people I have in mind haven't been around to share for a long time.

I've run my factory ORE axles with 37 Toyos for about 6 months and put it through 2 tough rock crawling trails. No breakage or issues. I then changed up entire drivetrain for other capabilities.

Corbo is also another good example to check.

 

So overall you think it'll be pretty okay this being a predominantly street driven truck?

That's pretty much what I've gathered reading around here and a few other places.

 

I'm running 37 an 4.88s with a dana 60 tho my daily driver an it drives just fine.
If that helps

 

Quite a bit of difference between a d44 and d60.......