Running Different Gearing

How much of a difference are the 4.10 gears vs 4.30 gears? Reason I ask is because I blew my rear end out a few days ago Which are 4.10 gears So I’m assuming from the factory the front should also be 4.10 gears. I found a cheap rear carrier for $600 new but it’s got 4.30 gearing. Would it be an issue to run 4.30 in the rear and 4.10 in the front? What issues would it cause? Or would there even be any issues? I had to cut it open to remove the spider gears from bottom of diff so I could drive it. Couldn’t get a tow truck ‍♂️

 

It would cause a BIG issue as soon as you put the vehicle in 4wd. Huge issue. Do not attempt it. The transfer case engagement/disengagement on these trucks can get cranky when the front and rear tires aren't wearing at exactly the same rate let alone having non matching ratios in the diffs. The stress on the drivetrain would definitely cause something to break, driveshaft, u-joint, t-case, diff....

 

Any gearing questions, give Keith Carty of Dirty Deeds Industries a call at 760-877-4234.

 

Thanks for the info

 

Cool Thanks

 

Also how well will the 4.10 gears hold up to 37.12.50x20 tires?? Would it just be a shittier gas mileage type of deal or is there other things affected?