Thoughts on 4.56:1 and 31"

[Beezil]

the ***ONLY*** time youd feel any slight effect would be (like you said) in low range, with maybe the decent of a hill helping out, but certainly not during normal driving circumstances.....

the increased rolling diameter of a larger tire has the most real effect

 

[Safari Ary]

Ok, I guess the theory of it was getting to me more than the reality.....

 

[MistWolf]

I wish you'd be more outspoken about that eagle, but nnoooooooo, you like to see me hang!

tell these young kids how a few jeeps came from the factory with 5.38's oem!

Sheesh! Sometimes I think the Knucklebutts here (Yeah I'm speaking to you, Beezilbub! ) have memories shorter than the list of OEM parts on a Freaks' XJ. We've had this conversation a few times on this list. I've been telling folks for sometime that 4.56s work great with 32 inch tires both on and off road. It's been mentioned many times that the old Ramblers (among other Detroit born iron beasts) were often run at 3000 rpms with little or no trouble before the days of overdrive. Well, that's ok, it's fun to watch the young pups discover what the old wolves have long discovered.

Actually Beezil, we really don't like to see you hang so please- pull up your shorts and for heaven's sake, fix your suspenders!

 

[Beezil]

Misty, make sure you get my back the next time I try to tell someone that 5.13's are fabulous with 35's.....

 

[MistWolf]

I did the math on that combo and it had me thinking about 5.38s or there about! Unfortunately my Currie High Pinion 9 won't go lower than 4.88.

Gear Limbo- How LOW can you GO?

 

[Nay]

I did 4.56 and 31's and drove cross country with it. It was fabulous around town and on the highway. Going to 33's only dropped the highway RPM's by 200, which is meaningless. She always cruised nice on the highway at 3,000 RPM. I never lost anything in mpg...no worse than 3.55 and 30" tires.

I'd do 4.10's for the long haul for 31's if you have an auto tranny, because it keeps the "dead spots" where they belong (my rig runs better with 4.56 and 35's than it did with 4.56 and 33's). But if you have a five speed, I'd do 4.56 with 31's for sure.

Nay

 

[Beezil]

Nay, I gotta disagree with you......

I'd do 4.56's with an auto SOONER than I would with a stick, based on the fact that the aw-4 has a much deeper overdrive (.71) than the manual. The aw-4 will "soak up" a numerically high gear better than the manual, which is better since the tranny will achieve t-convertor lock-up a little sooner, and be less apt to go "hunting" for overdrive and lockup during hill climbs and lower highway speeds.

 

[MistWolf]

I tink he was talking about shift points coming at more convenient places for his style of driving