3.21

Hello fam, I have a 22 ecodiesel 1500 with factory tires/wheels (22's) and 3.21 gears. im wanting to put on 35's. Im not concerned with rubbing (have revel links coming in mail) but I am concerned with wear and tear to the transmission and possible major hit to mpg's. Ive seen quite a few people...

Due to putting on 35+k miles a year I'm thinking about swapping the hemi for the ecoD. Not much towing, lots of commute (usually 65 to 75 mph) and then driving on rough muddy jobsites (>10 mph). 1. If I swap to 295/60r20 or 35x11.5x20 tires am I going to hit myself for not getting 3.92 gearing...

My fiancé and I would like to trailer her Jeep to an off-road park. However, I’m not sure I would be able to tow it. Im not sure of her curb weight and the trailer weight. My guess would be 5500 lbs curb weight and 1500-2000 lb trailer weight. I weigh about 200 lbs and my fiancé weighs about...

I have a 2019 Ram 1500, 5.7L with 3.21 rear gears. I want to swap the gears to 3.92s. Does anyone know what other modifications would be required, if any? Computer reprogramming? Trans cooler? What exactly are the differences from factory other than the gears?

I purchased a 2020 Ram 1500 about 6 months ago and want to do a gear swap. Ive searched high and low and cant seem to find any aftermarket ring and pinion sets for the swap. I have a 3.21 and looking for a 4.10. It is a 2wd so the front end isnt an issue here. Anybody know where I can find them...

I hope this post will help to end the debate with facts and not opinions, and become THE post people refer to those who are having a hard time deciding. You already know that 3.92 is better for towing, and 3.21 gets better fuel economy, so I will talk about what you might not know Bottom line...

Just picked up my 2019 all new billet silver 5th Gen, Bighorn / Lonestar Crew, 5.7, 3.21 gears, 25Z package, LED’s, (9) Alpine speakers and remote start two days ago. After 500 miles I’m so impressed with this rig. It’s ride, it’s power, it’s stereo and it’s great looks! I wasn’t impressed with...

How realistic / costly is it to switch a truck that comes with the 3.92 gear ratio back to a 3.21? I’ve found several trucks that I like that have the 3.92 instead of 3.21, but I do not need the 3.92 as I do not do a lot of towing. I realize this may be a really stupid question.