New Raptor Load Range C 37s?

[WhyBerg]

Appreciate the replies! I was worried about 35s looking not quite enough and frankly, the weight was so similar it seemed worth it.

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[CarbonSteel]

Appreciate the replies! I was worried about 35s looking not quite enough and frankly, the weight was so similar it seemed worth it.

OK, so I'll be that guy. I think, yes, you can run 35's or 37's with 4.10 gears, but it is far from optimum, particularly if you have the 3.6L.

I ran 33's and then 35's with 4.10's and lost 8th gear on anything that was not flat. I would lose 7th on inclines and head winds. It constantly up and downshifted to the point of being a real PITA.

I re-geared to 4.88 and initially ran 35's with them and it was great. Stays in 8th like it should and has proper torque. I upgraded to the 37" BFG's and lost a little torque, but it is still FAR better than 4.10s.

These are "short" 37's and thus far work great with the 4.88's. For standard 37's, I would look to 5.13's and call it good.

 

[alksion]

OK, so I'll be that guy. I think, yes, you can run 35's or 37's with 4.10 gears, but it is far from optimum, particularly if you have the 3.6L.

I ran 33's and then 35's with 4.10's and lost 8th gear on anything that was not flat. I would lose 7th on inclines and head winds. It constantly up and downshifted to the point of being a real PITA.

I re-geared to 4.88 and initially ran 35's with them and it was great. Stays in 8th like it should and has proper torque. I upgraded to the 37" BFG's and lost a little torque, but it is still FAR better than 4.10s.

These are "short" 37's and thus far work great with the 4.88's. For standard 37's, I would look to 5.13's and call it good.

Wondering how 3.73s with the 392 HEMI will be. I’ll find out soon enough.

 

[CarbonSteel]

Wondering how 3.73s with the 392 HEMI will be. I’ll find out soon enough.

LOL - with the torque of a V8, I doubt you would have issues running 3.45 gears. You will be fine just like the 2.0T will have less issues than the 3.6L

 

[alksion]

LOL - with the torque of a V8, I doubt you would have issues running 3.45 gears. You will be fine just like the 2.0T will have less issues than the 3.6L

Sweet looking forward to getting them installed.

 

[WhyBerg]

OK, so I'll be that guy. I think, yes, you can run 35's or 37's with 4.10 gears, but it is far from optimum, particularly if you have the 3.6L.

I ran 33's and then 35's with 4.10's and lost 8th gear on anything that was not flat. I would lose 7th on inclines and head winds. It constantly up and downshifted to the point of being a real PITA.

I re-geared to 4.88 and initially ran 35's with them and it was great. Stays in 8th like it should and has proper torque. I upgraded to the 37" BFG's and lost a little torque, but it is still FAR better than 4.10s.

These are "short" 37's and thus far work great with the 4.88's. For standard 37's, I would look to 5.13's and call it good.

There’s always gotta be one…lol.

for what it’s worth, I felt like 8th wasn’t happening all that often on road trips anyways. Any blip of the throttle and it didn’t stay there, so I’m not sure how much I’ll miss it…at least that’s how I’m thinking now.

Guess this is a ‘try it and find out’ type of thing, just wish it was a bit less expensive…although I’m pretty sure I gave that thought up when I bought it!

 

[jerseymike]

OK, so I'll be that guy. I think, yes, you can run 35's or 37's with 4.10 gears, but it is far from optimum, particularly if you have the 3.6L.

I ran 33's and then 35's with 4.10's and lost 8th gear on anything that was not flat. I would lose 7th on inclines and head winds. It constantly up and downshifted to the point of being a real PITA.

I re-geared to 4.88 and initially ran 35's with them and it was great. Stays in 8th like it should and has proper torque. I upgraded to the 37" BFG's and lost a little torque, but it is still FAR better than 4.10s.

These are "short" 37's and thus far work great with the 4.88's. For standard 37's, I would look to 5.13's and call it good.

I’ll second this, I went to light 35s and it was ok with stock 3.73 (I have a gladiator) but really needed a regear to 4.88. With 4.88s it is awesome.

 

[CarbonSteel]

@thread - what pressures are you guys running on these BFG's? I find they are "bouncier" than the Kanati's I had. I am running 32PSI and I have not had a chance to do a chalk test, but was curious as to what all of you are doing.

 

[jlang]

@thread - what pressures are you guys running on these BFG's? I find they are "bouncier" than the Kanati's I had. I am running 32PSI and I have not had a chance to do a chalk test, but was curious as to what all of you are doing.

Im at 30psi

 

[CarbonSteel]

Im at 30psi

Thanks--just lowered all 4 to 30 and will see how it rides. I plan to do a chalk test later today.

 

[CarbonSteel]

I put about 100 miles on them today on the highway at speeds between 65 and 75. Hands down these are the quietest all terrain tires I have ever had--a real joy to drive.

At 30PSI they are still a little bouncy, but that is because they warm up to 33 or 34. I did not get to do a chalk test, but will tomorrow if the weather cooperates. I plan to try 28 to see if they level off at 30PSI when they are warm.

 

[plex]

I used to be "oh the new 8-speed auto and 4.10 handle everything just fine" kind of person, I swear I will never regear because it is a totally waste of money.

Until I regear, there is a huge difference after regearing, in terms of how the Jeep handling acceleration and cruising, it is not just about 8th gear and mpg.

The Pentastar V6 has a notorious torque and HP curve, it started flat, and ended flat. It is actually not an optimal choice for an off-road vehicle. Regear helps a lot by giving some power in the lower end.

Besides, now I get 20 mpg on highway, yes 20 mpg with 37 and tons of gears (winch, hi-jack, roof rack, etc.) I hit myself everyday why not do this earlier.

 

[alksion]

I put about 100 miles on them today on the highway at speeds between 65 and 75. Hands down these are the quietest all terrain tires I have ever had--a real joy to drive.

At 30PSI they are still a little bouncy, but that is because they warm up to 33 or 34. I did not get to do a chalk test, but will tomorrow if the weather cooperates. I plan to try 28 to see if they level off at 30PSI when they are warm.

So happy to hear. Mine are shipping from Boston to California. Now what to do with the brand new tires coming on my 392? Keep them and put them on my wife’s Sahara when her tires get old or keep them and put them on my turtle back trailer?

 

[Kingpre]

I used to be "oh the new 8-speed auto and 4.10 handle everything just fine" kind of person, I swear I will never regear because it is a totally waste of money.

Until I regear, there is a huge difference after regearing, in terms of how the Jeep handling acceleration and cruising, it is not just about 8th gear and mpg.

The Pentastar V6 has a notorious torque and HP curve, it started flat, and ended flat. It is actually not an optimal choice for an off-road vehicle. Regear helps a lot by giving some power in the lower end.

Besides, now I get 20 mpg on highway, yes 20 mpg with 37 and tons of gears (winch, hi-jack, roof rack, etc.) I hit myself everyday why not do this earlier.

What did you regear to?

 

[TrailSnail]

These are 3lbs per tire lighter than 35x10.50 Kendas... Holy crap, I may be rethinking my plans.

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