Search results

I don't know about the sunroof issue. I read people have been getting wind noise from the: 1. The small gap in the forward side of the side view mirror housing. (You can tape the gap with tape, if it goes away, you have this problem) 2. improper seal in engine bay where the AC air intake is...

I do not know if the Diesel transmission has the exact same gear ratio. They should all be variations of the German ZF 8-speed transmission. It's one of the best in the industry. I am personally not a big fan of the Italian designed Eco-diesel. The last 2 generations of the engine all had...

Correct.

What makes sense is, it shifts to whichever gear the engineer programmed it to. Nobody knows if they’ve done the job right.

Situations that require you to shift to 6th would require 3.92 to shift to 7th. However situations where it requires the 3.21 to shift to 8th, the 3.92 does not have the equivalent gear to match. It would be like 3.21 is stuck in 7th gear. Now, towing is another story, 3.92 is a must for towing...

I would stick with the door sticker for OEM equipped tires. Tires these days are passenger tires. If you switch to a D or E rated tires you might put 60-80 psi in them. Don’t ever do that to passenger tires! It’s very normal for passenger tires to be around 30-35 psi. You’re creating...

Yeah I was too lazy to open up excel or matlab

They're the same transmission, but the final drive ratios are different because of the axle ratio. See this for final drive ratio:

Exactly, great pick for your usage!

True. I would for sure go 3.92 if I plan to put 37s and above tires.

From a stop, the 3.92 will enter the engine power band quicker, and is more likely to kick the tires loose. Overall acceleration should be very similar without load. Overall, for your transmission to maximize engine output, it needs to maintain a final drive ratio that puts your engine's rpm...

Glad I can help. 3.21's highway "sloppiness" is not a bug but a feature, for real.

Glad I can help

Thanks! That's true, people seek evidences that support their own beliefs. For 3.92 lovers here, I list the exact reason why 3.92 is better for towing, and for 3.21 lovers, I list exact reason why 3.21 is better for fuel economy. There's something for everyone. Personally, I am leaning 3.21...

Glad you liked it!

Check out my post. https://5thgenrams.com/community/threads/an-engineers-ultimate-guide-to-3-21-vs-3-92-axle-ratio.16986/

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...

I wasn’t basing it off the TFL video. There was another guy with a black ram he owns. Having lived in AZ in the summer. I know having AC on full blast and still feel hot in 110 degree heat feels like. At 110 degrees, my VW AC probably blows 60+ degrees air. If ram blows 50 at 90-100 outside...

Can you post the fix?

I’m glad it’s not a problem for you. I’m still looking for an definitive answer for 2020 year. I wonder if FCA is choosing some crappy AC supplier based off fiat standards. One thing struck me the most about f150 is how quickly it cools and the AC barely have to blow after it’s cooled. I’ve...