TJ going to put 33's on but it has 3.07 gears.... - Page 3

**B2CARPEN** · 01-20-2010, 11:29 AM

Quote:

Originally Posted by schultr1

I will eventually re-gear it to a 4.11 but not right away since i don't have the cash to do so. and i would really like to put a locker in but i would have to wait a really long time for that.

Lock the front before you even think about spending $$ on a regear. $300 for a richmond lock-right and you can install it yourself... it will be night and day.

Quote:

Originally Posted by Ross

You should think about 4.56s. I will assume you have a d35 if you have 3.07s. That rear end isn't really the best choice for tires much larger than stock. If money is an issue you need to becareful. If you plan on off-roading the jeep I would think about getting a stronger rear axle before I got larger tires.

I agree 4.56s are ideal for 33s and will be what I install when the time comes. Both D30 and D35 axles can handle 33s just fine. a lot of guys run 33s and even 35s on D3o / D35 setups without any problems.

schultr1 has mentioned he won't be doing anything extreme... and he will not need to worry about doing an axle swap. He can run the D30 /D35 with 33s and upgrade the axle shafts if anything breaks down the road.

Ross · 01-20-2010, 11:42 AM

Quote:

Originally Posted by B2CARPEN

I agree 4.56s are ideal for 33s and will be what I install when the time comes. Both D30 and D35 axles can handle 33s just fine. a lot of guys run 33s and even 35s on D3o / D35 setups without any problems.

schultr1 has mentioned he won't be doing anything extreme... and he will not need to worry about doing an axle swap. He can run the D30 /D35 with 33s and upgrade the axle shafts if anything breaks down the road.

I will agree that the D30 is fine for even up to 35s. I ran that way for years. The only one I ever saw break was a guy wedged trying to reverse and he kept his locker on.

i will disagree about the d35. They can break ever moderate wheeling. There was a guy in a group I wheeled with that broke one accelerating hard on the street. I saw one snap when the guy was backing trough a LITTLE rut in a staging area. They can snap easily.

You can baby it and run it forever as long as you remember you have an extremely weak point. Just don't reverse over any that would cause much resistance. Get over excited just once and it can lead to a problem.

If money is an issue I would think twice before I but too big of a tire on a D35.

Ross · 01-20-2010, 11:44 AM

Quote:

Originally Posted by schultr1

too low. I have alot of highway driving i do with the jeep. so 4.11 will be as low as i can bring myself to go. Its still my dd and occasional trail.

4.56s are fine on the high way with a 5 spd. You could even run 4.88s with 33's.

**schultr1** · 01-20-2010, 11:48 AM

I do indiana Highway which is 70mph and my last jeep had 4.11s and it was pretty low for that speed. it had 31s but still for the amount of off-roading i do, 4.11 should be just fine

**B2CARPEN** · 01-20-2010, 11:53 AM

Quote:

Originally Posted by Ross

I will agree that the D30 is fine for even up to 35s. I ran that way for years. The only one I ever saw break was a guy wedged trying to reverse and he kept his locker on.

i will disagree about the d35. They can break ever moderate wheeling. There was a guy in a group I wheeled with that broke one accelerating hard on the street. I saw one snap when the guy was backing trough a LITTLE rut in a staging area. They can snap easily.

You can baby it and run it forever as long as you remember you have an extremely weak point. Just don't reverse over any that would cause much resistance. Get over excited just once and it can lead to a problem.

If money is an issue I would think twice before I but too big of a tire on a D35.

D35 axles will turn 33s just fine as well as work well for offroading. The D35 axle shafts will snap if you run 33 or larger AND have it locked. You cannot lock a D35 (period) without upgrading the shafts (super D35). If the OP was considering running a locker in the rear then I would suggest upgrading to a D44... but not just b/c he wan'ts to run 33s on an open axle. The D35 will be fine for that.

In addition... if for some reason or another he does snap his axle shafts, then he can upgrade from 27 to 30 spline chromely at that time. Still wouldn't need a D44.

The axle discussion is a dead horse... if you search around this forum you can see what I'm talking about. I'm sure the guys that snapped their D35s were not b/c of 33" tires... but b/c they had it locked.

K9trnr · 01-20-2010, 11:55 AM

hey shultr1, I live in cincy and have a yj with a 4.0 and have the 3.07 gears, I have a 4" susp. lift and 33" x 12.5 tires, I get around just fine, I use 5th gear if I am on a flat section of road and do have to down shift to 4th gear to pull hills. During my usual city driving it's not a big deal at all.

I agree changing gears would be optimal, and you certainly arent going to have a rock crawler (ha ha) but you will be able to commute to classes etc with the 3.07 gears.

**schultr1** · 01-20-2010, 11:57 AM

Alright cwagoner thats what i was basically asking. lol it got out of hand. thanks appreciate it.

**B2CARPEN** · 01-20-2010, 12:17 PM

Quote:

Originally Posted by schultr1

Alright cwagoner thats what i was basically asking. lol it got out of hand. thanks appreciate it.

LOL.. sorry for that hahaha..

I love you Ross

And he was correct in stating that the D35 is weak compared to other axles. As you continue to upgrade your rig... just something else to think about.

**schultr1** · 01-20-2010, 12:19 PM

yea i plan to eventually way down the road do d44s with lockers and 4 wheel disc brakes but like i said thats way down the road.

krawler510 · 01-20-2010, 12:25 PM

3.07s and 33s is miserable. I hardly drive my Jeep just because it's irritating and I can't drop $1,200 on a gear swap. I haven't used 5th gear in over 2 years. On the highway 4th is a fairly decent ratio and she'll roll 55-80 with no issues. However, it is around town that kills it. Too much clutch slipping to get started and just overall lack of power is lame.

A good alternative if you just want 4.10s(please at least get this) is the axles from a 4 cylinder Wrangler. They will bolt right on.

Ross · 01-20-2010, 12:34 PM

Quote:

Originally Posted by B2CARPEN

D35 axles will turn 33s just fine as well as work well for offroading. The D35 axle shafts will snap if you run 33 or larger AND have it locked. You cannot lock a D35 (period) without upgrading the shafts (super D35). If the OP was considering running a locker in the rear then I would suggest upgrading to a D44... but not just b/c he wan'ts to run 33s on an open axle. The D35 will be fine for that.

In addition... if for some reason or another he does snap his axle shafts, then he can upgrade from 27 to 30 spline chromely at that time. Still wouldn't need a D44.

The axle discussion is a dead horse... if you search around this forum you can see what I'm talking about. I'm sure the guys that snapped their D35s were not b/c of 33" tires... but b/c they had it locked.

I don't know anybody who has locked a D35, the ones I have seen snap where open.

I am talking stock, not upgraded.

NUBOPOLY · 01-20-2010, 12:42 PM

I have a 99 wrangler pretty sure it has 3.07s and i also have the 4.0 with a 5 speed. I have 285/75/16s on my jeep with a 3inch, they measure about an inch smaller than my friends 35s, and i can run 5th gear from about 50-65mph anything over or under that it doesnt have the power. Im still getting like 15 mpg. my tires measure about 33.1in tall 9.1in wide. I dont run a lot of offset either which may help me out a bit.

mitchrb1 · 03-14-2010, 03:20 PM

Does anyone in Cincinnati know were to get a regear done. What local shops are there. I live in NKY, but work in Cincy. I have the 3.07's with an Auto transmission. It's fine around town, but long uphill stretches suck. I am ready to regear. Thinking 4.56's Also, my rear pinion seal is leaking, I assume this gets replaced when they regear?

mpala96 · 03-14-2010, 03:28 PM

I drove my '01 TJ (5 speed) with 33 inch tires and 3.07's for almost a year with no problem. I wouldn't recommend doing a lot of trails until you've upgraded

but they did just fine on the street. I had plenty of power to get where I needed....of course I have the 4.0 as well. I averaged about 14-16 mpg on the highway.

Save up and do it right....good luck bro.

Ruffnek · 03-14-2010, 09:46 PM

I had 33's and 3.07s on a 98 XJ. It was fine and I even wheeled it, I have 4.10s in it now and it is way better all around, except that my hwy gas mileage is worse now. You will be fine untill you can afford a regear, you'll just have to downshift for every hill or gust of wind, lol. You need to replace the carrier, not the whole diff case to regear to 4.10 or lower (numerically higher)