can world tell me what the rpms space at 75 with 33s and also what equipment ratio lock havetrying to number out the finest ratio once i switch over. I need to drive commonly 100 miles to get to trails whereby I to be . My 5th gears isn’t always great on freeway v 3.73 and 31s. I execute want to move to 33 in tires eventyally and hear 4.56 is great but wouldn’t the be tantamount to what I already have?
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The difference is walking to it is in on the stimulate of 150 RPM. One of two people one will job-related fine. If you worth power/acceleration end a marginal amount of engine wear and also tear climate the 4.88s would probably be better.Personally in your instance I would go v 4.88s. If you ever before make the jump to 35s you would still it is in okay, return 5.13s can be better with 35s.5.13s would put you close to 3000 rpm in ~ freeway rate with 33s, which might be a little much, but is still acceptable.

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Most tires run a bit smaller than advertised size, so take that into account. I operation 2500 rpm"s in ~ 65mph in fifth gear through 33"s and also 4.56 gears. 4.88"s have to still it is in acceptable.
I have to check maybe the hands-on trannys are different through the years and also they us have distinction gears which may affect
Pretty right forward.Click on the "pick your own numbers"... AndPick the transmission you havePick the transfer situation you haveEnter the ratio you have... Or desire to haveEnter the tires diameter friend have... Or wantand scroll under to check out the data.And this subject might help determine just how your TJ is equipped
The function of this thread is to layout a finish list of stock specifications discovered on the Wrangler TJ. This info was gathered from numerous sources and is believed to be specific for U.S. Spec Wranglers TJ (it may not be specific for foreign models). If you notice any errors or have...
I think the OD proportion on that calculator can be incorrect. I seem to recall the NV3550 having a .78 OD, not the .73 OD provided there.The AX-15 has actually a .79 OD so that would certainly be within 50 RPM that the NV3550. I would usage that ~ above the fall down
With my share 3.07s, AX-15, 33s, I"m not sure the 4.0 was qualified of 75 mph unless it to be a big hill i was walk down. The numerically short gearing was hard on the MPG uneven I change a lot and also rarely did end 55 mph. Ns think I"m to run close come 1,900 rpms though when I fight 75 mph, i beg your pardon is a little low for my preference, to add I try to run 65 come 70.Btw mine 33s are choose 32.6" in diameter brand new. I had some 31s and after around a year they measured 29" in diameter without lot use.Unless you everyday drive her Jeep, I indicate numerically greater gearing. I"m going way too rapid off-road through my gearing and also I day-to-day drive my Jeep, therefore I"m really picky v my gearing and want to walk to 3.55s, however diesel RPM is a fully different ball game.
I think the OD ratio on that calculator might be incorrect. I seem come recall the NV3550 having actually a .78 OD, not the .73 OD provided there.The AX-15 has actually a .79 OD so that would be within 50 RPM of the NV3550. Ns would use that ~ above the autumn down
Yep, ns noticed that together well. I created to the creator of the calculator a while ago but it appears it hasn"t been updated.
Yep, ns noticed that together well. I created to the creator of the calculator a while ago but it appears it hasn"t been updated.
I likewise was hope to discover the Ford/GM 10 rate auto on there. Guess it hasn’t been updated in a while
So my experience, 3.07s, 33s on a YJ with a carb and also the Peugeot 5speed. I never ever used fifth gear yet I did numerous US Interstate and also ran 75mph in 4th, no problem, and also I always got over 20mpg. Dropping to 3rd for hills and also head winds.With mine TJR, 33s, 4.10s, 6 speed, i can nearly hit 20mpg IF I stay under 60mph and also NEVER floor it. No happen allowed. Anything quicker or more agressive and also it drops come 15mpg.The beauty beauty of 3.07s is 4LO. The runs like a Mustang top top forestry roads and can hit 60mph in 4LO. There were numerous forestry lookout towers we would certainly visit every year. V the YJ and 3.07s us ran up in 2nd, 4HI and came down in 3rd, 4LO. Honestly it was way more fun than doing it in a Rubi v 4.10s.With 3.07s, I"d shift into 4LO often. With my Rubi, I practically never use 4LO.

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can world tell me what the rpms space at 75 v 33s and what equipment ratio castle havetrying to number out the ideal ratio when i switch over. I have to drive generally 100 miles to obtain to trails wherein I am . My 5th gears isn’t always great on freeway through 3.73 and also 31s. I execute want to move to 33 in tires eventyally and hear 4.56 is an excellent but wouldn’t the be indistinguishable to what I currently have?
I have actually a 2001 tj with the 4.0 , nv3550 , and also 4.56 gears. I have actually a new exhaust indigenous manifold earlier along with brand-new cat and banks exhaust so the breathes nice good. I started out v 3.73 gears and 33’s... No fifth gear basically ever. Because the 4.56 gears were on I’ve have run 35” km2 on steel wheels and now 33’s x13.5 Toyo mt’s ~ above aluminum wheels. Ns love the way my Jeep drives with the 33’s. Drove comparable with 35’s however no more accelerating uphill usually supposed dropping to 4th which is comparable to stock. I have the right to accelerate or host in fifth gear v the 33’s and I couldn’t through the 35’s in any type of steeper grade. If your jeep is a everyday driver or sees more street time than trail time i say carry out the 4.56 gears. If it is an extra vehicle or will certainly be at some time in the close to future i would perform the 4.88’s. Really think about the size tire you want to run and also wheel selection combo to save the weight together low as possible. Once tire shopping to compare weights that tires together well. No all tires are developed equal and the tire and wheel combo will certainly also affect your braking and acceleration. Sorry, don’t go 75 in my Jeep much more like 65 because that me therefore I deserve to speak to that. The not because it can’t I’m just not ~ above highways for stretches much longer than 25 miles so i usually simply cruise.