Topic: Gearing for 33" tires and automatic

[aerotech]

I have a 98 Wrangler with automatic transmission, stock gearing on d30/d35's, and 33" MT Baja Claw tires. The jeep is used as daily driver and drives both city and highway with no power on a windy day.

Would like to here from some of you that have automatic transmission and 33" tire as to what diff gearing you run and whether you are happy with it. Trying to decide between 4.56 and 4.88

[Torch_Ind]

I'm running standard and have 4.88's and wish it had a bit more or wish I could stuff at least 5.13's in there I would even do 5.38's if I got d44's under me.

for the 30/35 I would recommend anyone to go to 4.88's.  4.88's would give you a advantage over me giving your auto and I'm standard.

My vote is 4.88's all the way!!

[aerotech]

Thanks for the reply. Not sure how much difference there will be between automatic and manual. I know us automatic guys don't have the option of driving in 4th. I'm kind of leaning towards 4.88 myself

[Jeffy]

Thanks for the reply. Not sure how much difference there will be between automatic and manual. I know us automatic guys don't have the option of driving in 4th. I'm kind of leaning towards 4.88 myself

That would be 5th.  The manuals 4th is exactly the same as your 3rd, 1:1.

[Torch_Ind]

That would be 5th.  The manuals 4th is exactly the same as your 3rd, 1:1.

oh man 4.88's would be rocking then with a auto.  I would go a bit bigger gears if I could but can't   

[97 TJ - I dont wave]

4.88 is where you want to be if you wheel and daily drive.
If you are only a trail rig then go higher.
With the dana 35 your axle shaft will break not too long after the gear job.
After you replace your axle shaft the track bar mount/upper drive control arm bracket will break its weld and come off of the axle.
Bottom line, don't waist a penny on regearing. Save your money for an upgraded rear end with the bells and whistles.
Options:
Dana 44
Rock Jock 60
Spider Trax 9 with True High Nine member.

Good luck.

[Torch_Ind]

I am running 4.88's in my yj with standard and been wheeling 2 years now. no problems. 

you could brake that stuff at stock gearing if your foot is always throw the floor. If you have the cash for heavier axles I would do it but if you don't re-gearing will be fine.

[aerotech]

So far have input from people with manual transmissions. Anyone with automatic transmission out there??

[Torch_Ind]

So far have input from people with manual transmissions. Anyone with automatic transmission out there??

I will ask my buddy he is running auto I think and has 35" Krawlers but he may still be stock gearing lol knowing him!


Never mind just called him he is running the 6cld with 3.73's and said his rims were supper light weight. he could prob go to bigger gears to and it would help for a 6cld

[aparke4]

4.56 would be my vote - good on road/ enough mud slinging ability off - even with the 4 banger you will be able to cruise fine.

[Jesse-James]

I was running 4.56's w/33's and an auto for the last few months and it was perfect.

Remember with a manual you can throw it in 5th on the freeway to bring the RPM down, we're stuck with what we got in 3rd.

[bootguy]

4.88 on 33's with an auto.  decent gas mileage, good power one of the best investments made so far.  Just make sure you change the speedo gear, otherwise you shift points are all screwed up.

[4X4DAVE]

I have an auto with 4.88 and 33 inch tires. I'm very happy. On the highway my RPM run about 3500-4000, not too bad. I average around 14-16 MPG.

[Jeffy]

I have an auto with 4.88 and 33 inch tires. I'm very happy. On the highway my RPM run about 3500-4000, not too bad. I average around 14-16 MPG.

But that's at 70-75MPH which is pretty good.

[RT]

for 33's and an auto, I'd go too dana 44's rear and either 5.13's or 4.88's man, those are some monster tires 4 a 4banger tho, you could probably get away with 4.56's but you're going to eat a lot of gas, what else do you have running on it?