Super 35 kit if only mall crawling?

[TanDeano]

So I bought my TJ in August and the previous owner had some kind of lift (im thinking 2in) and 33 inch tires put on
well me being the naive 20 year old I am, eager to buy my first Jeep didn't know about gearing and tire size.
So I'm stuck with a Jeep on 33's with 3.07 gears, I am looking to regearing to 4.56 after reading other forum posts.
My Jeep rarely goes offroad as there's no trails here so I'm wondering if I need a Super 35 kit If my Jeep will mainly be on pavement?

 

[qslim]

So I bought my TJ in August and the previous owner had some kind of lift (im thinking 2in) and 33 inch tires put on
well me being the naive 20 year old I am, eager to buy my first Jeep didn't know about gearing and tire size.
So I'm stuck with a Jeep on 33's with 3.07 gears, I am looking to regearing to 4.56 after reading other forum posts.
My Jeep rarely goes offroad as there's no trails here so I'm wondering if I need a Super 35 kit If my Jeep will mainly be on pavement?

I have a 99 Sahara with an open 35 running 33s on a 4" lift. , I've been to Moab twice and we do local trails all the time. I haven't ever done anything super technical and our local trails are mostly dirt with a few rocks, I've never had a problem. I'm planning a Super 35 swap right now but that's only because I want to do more stuff. If I wasn't I'd leave it as it. I'd say save your money if you aren't going to 4wheel it.

 

[Impact LJ]

I am far from qualified to advise on the matter but I would think you'd be fine if you are strictly on-road. I want to say I read it on the beginner lift thread in the resources section.

Welcome to the site by the way! I would start in the resources section, a lot of great info there.

https://wranglertjforum.com/forums/tj-resources.121/

 

[DustinfromOhio]

I think you’re pretty safe without the super 35 with 33’s and road driving. I believe 4 cylinder TJs with auto trans came factory with 35/30 and 4.56 gears so you may be able to find a set for cheap and swap them for next to nothing vs regearing. Factory axles with 4.10s would be the next best choice.

 

[Steel City 06]

The Super 35 kits I know of only work with locking differentials. I don't know of any open or limited slip Dana 35 carriers in 30 spline.

Without a locking differential, you likely won't see the loads that an axle with a locked differential will see, so in most cases you should be fine.

The biggest risk you run is if you spin the wheels quickly and one of them catches on something. So if you get stuck in the mud, flooring the pedal is going to cause significant risk of snapping an axle shaft. So keep your wheelspin speeds low and focus on technique.

Assuming you don't need a locking differential, consider a limited slip differential like the TrueTrac in the rear. A limited slip provides a modest boost of traction on loose surfaces without negatively impacting driveability on road. They are great for gravel/dirt roads, shallow mud, and snow. (They are often not sufficient for rock crawling or deep mud.)

 

[Yamahor]

I ran 32.5s since i got mine in March. Mostly daily driven, but had some fun off-road, mud, etc. You'll be fine as long as you don't spin tires to much and suddenly get traction. The 35 is weak, but strong enough to mall crawl lol. Hell, I'm on no lift and 35s on my stock axles just to see how they fit. Only a little self clearancing compared to what i expected!

(And yes, I'm swapping to better axles and a lift in about a month, just driving around town for the fun of it)

 

[cpwolf]

So I bought my TJ in August and the previous owner had some kind of lift (im thinking 2in) and 33 inch tires put on
well me being the naive 20 year old I am, eager to buy my first Jeep didn't know about gearing and tire size.
So I'm stuck with a Jeep on 33's with 3.07 gears, I am looking to regearing to 4.56 after reading other forum posts.
My Jeep rarely goes offroad as there's no trails here so I'm wondering if I need a Super 35 kit If my Jeep will mainly be on pavement?

254 Texas is Temple/Killeeen/Waco, there are tons of places hard core to wheel in Central Texas Hill Country.

Question 1 can you post some pics and some of the suspension?

Question 2are you wanting to stay with 33’s Or change tire size?
Taking your question at face value....33’s and a 2” lift is tight, are you wanting to change your lift?

Unless you are putting on 35’s with a locker, a Super35 is not necessary.

If you have stock axles, you can break a stock 35 axle with 33’s on pavement, my 19 year old Soph at TX Tech did it.

Are you wanting to regear? If that is what I’m seeing, then the plan is needs to be based on that.

 

[Westtown Willy]

there's another option to give you more peace of mind, when you do the gears have them swap your stock shafts for a pair of upgraded 27 spline shafts, they're stronger than what you have but don't require a locker like the super 35 does so it will only add a couple hundred bucks to the total price of the job.

https://www.revolutiongear.com/prod..._tj_yj_and_93_98_zj_rear_axle_revolution_gear

 

[ErikOffroad]

There’s a entire Dana 35 axle and two stock Dana 35 axle shafts I left in a scrap metal dumpster at my old work in Liberty hill Texas. I would not be too worried about it. I wheeled at hidden falls a bunch of times on 33’s with a stock Dana 35. There are spare parts available around you from people axle swapping or building there axles. You could easily find a Dana 35 by you for not that much money. Also there is a lot of wheeling around you in Texas.

 

[Goatman]

From all I've read you are fine. The usual recommendation for a super 35 is for 35" tires. So I'd say you are in the safe zone. But don't keep it a 'mall crawler'. These TJ's are happiest when they are getting dirty on a regular basis. Even with 3.07's you should be able to get through most 2-tracks and light-med trails. Even with highway tires. If you put decent A/T's on then you are set. Enjoy what your Jeep was made for. Go through all systems to be sure they are good, then find some buddies and hit the dirt!

 

[HYRYSC]

For peace of mind, it might be handy to have spare shafts just in case. I think that it's pretty rare, but I have read stories on here from folks that broke dana 35 axles on the street with larger tires. Once this happens, there is nothing to hold it in and it will walk out on you like the picture below.

 

[cpwolf]

For peace of mind, it might be handy to have spare shafts just in case. I think that it's pretty rare, but I have read stories on here from folks that broke dana 35 axles on the street with larger tires. Once this happens, there is nothing to hold it in and it will walk out on you like the picture below.

View attachment 190593

My son did this on stock Dana 35 with 33” tires backing out of a parking spot, it happens.

 

[HYRYSC]

Tandeano, don't be nervous about driving your new Jeep, just be mindful of what can happen. The great thing about driving a jeep is that when something bad happens, it usually makes an AWESOME story and great pictures.

Just drive it, when (not if) something breaks, just be prepared to replace it better and stronger (and usually bigger).

 

[Brian83]

For $350 you can buy a set of Ten Factory 27 spline shafts with a 10 year warranty and keep you stock shafts as back up. Thats alot cheaper than a Super 35 kit with a locker.

 

[Ephry73]

So I bought my TJ in August and the previous owner had some kind of lift (im thinking 2in) and 33 inch tires put on
well me being the naive 20 year old I am, eager to buy my first Jeep didn't know about gearing and tire size.
So I'm stuck with a Jeep on 33's with 3.07 gears, I am looking to regearing to 4.56 after reading other forum posts.
My Jeep rarely goes offroad as there's no trails here so I'm wondering if I need a Super 35 kit If my Jeep will mainly be on pavement?

Start here to make sure you know how much lift you actually have. You will be fine with the stock Dana 35, until you are not. if you are not wheeling and racing light to light, just be mindful that the previous owner could have been a penis to the the jeep.

Now, if you know for sure the gearing wasn't updated then fine, if not, it is a great time to make sure your gear oil is up to date and also check what actual gearing you have.

 

[TanDeano]

254 Texas is Temple/Killeeen/Waco, there are tons of places hard core to wheel in Central Texas Hill Country.

Question 1 can you post some pics and some of the suspension?

Question 2are you wanting to stay with 33’s Or change tire size?
Taking your question at face value....33’s and a 2” lift is tight, are you wanting to change your lift?

Unless you are putting on 35’s with a locker, a Super35 is not necessary.

If you have stock axles, you can break a stock 35 axle with 33’s on pavement, my 19 year old Soph at TX Tech did it.

Are you wanting to regear? If that is what I’m seeing, then the plan is needs to be based on that.

33’s are perfectly fine for me, and the lift (if it is 2 inches) seems to pair nice with the tires. I do want to regear to 4.56 as not being able to get my TJ over ~57mph is a pain. So I should regear and swap out the stock axles for these Factory Ten 27 splines like everyone’s sayin? Also if you know any trails near Waco let me know... everything is private property here

 

[Steel City 06]

With 33s and the 5 speed, consider going to 4.88. You'll get more torque in all gears and it shouldn't have any significant impact on fuel consumption.

Here is a guide to regearing:
https://wranglertjforum.com/threads...angler-tj-lj-and-other-re-gearing-faqs.17063/
Also, don't be afraid to rev it when you need to accelerate and go quickly. I routinely run mine up to redline when accelerating hard and frequently hold 4500+ RPM on steep hills on the freeway.

Most manual owners target about 3000 RPM at 75 mph in the final gear, while still downshifting for hills and passing cars.

 

[TanDeano]

With 33s and the 5 speed, consider going to 4.88. You'll get more torque in all gears and it shouldn't have any significant impact on fuel consumption.

Here is a guide to regearing:
https://wranglertjforum.com/threads...angler-tj-lj-and-other-re-gearing-faqs.17063/
Also, don't be afraid to rev it when you need to accelerate and go quickly. I routinely run mine up to redline when accelerating hard and frequently hold 4500+ RPM on steep hills on the freeway.

Most manual owners target about 3000 RPM at 75 mph in the final gear, while still downshifting for hills and passing cars.

75mph?? what's that?? lol I struggle to get it above 60 on flat surface in 4th gear

 

[Steel City 06]

75mph?? what's that?? lol I struggle to get it above 60 on flat surface in 4th gear

Looking at Grimmjeeper.com, you would only be doing about 2000 RPM in 4th gear at 60. If you're holding the pedal to the floor for a significant amount of time, you're lugging the engine and need to downshift to 3rd.

With your current gears and tires, I would use 3rd to accelerate to whatever highway speed you need and then use 4th to hold that speed. You would still need to downshift to 3rd for any inclines or to accelerate. Any hilly sections, or sections with a lot of traffic I might just leave it in 3rd. With your current gears, I would almost never touch 5th.

But ultimately, you desperately need a regear.

 

[TanDeano]

254 Texas is Temple/Killeeen/Waco, there are tons of places hard core to wheel in Central Texas Hill Country.

Question 1 can you post some pics and some of the suspension?

Question 2are you wanting to stay with 33’s Or change tire size?
Taking your question at face value....33’s and a 2” lift is tight, are you wanting to change your lift?

Unless you are putting on 35’s with a locker, a Super35 is not necessary.

If you have stock axles, you can break a stock 35 axle with 33’s on pavement, my 19 year old Soph at TX Tech did it.

Are you wanting to regear? If that is what I’m seeing, then the plan is needs to be based on that.

33’s are perfectly fine for me, and the lift (if it is 2 inches) seems to pair nice with the tires. I do want to regear to 4.56 as not being able to get my TJ over ~57mph is a pain. So I should regear and swap out the stock axles for these Factory Ten 27 splines like everyone’s sayin? Also if you know any trails near Waco let me know... everything is private property here

Looking at Grimmjeeper.com, you would only be doing about 2000 RPM in 4th gear at 60. If you're holding the pedal to the floor for a significant amount of time, you're lugging the engine and need to downshift to 3rd.

With your current gears and tires, I would use 3rd to accelerate to whatever highway speed you need and then use 4th to hold that speed. You would still need to downshift to 3rd for any inclines or to accelerate. Any hilly sections, or sections with a lot of traffic I might just leave it in 3rd. With your current gears, I would almost never touch 5th.

But ultimately, you desperately need a regear

Looking at Grimmjeeper.com, you would only be doing about 2000 RPM in 4th gear at 60. If you're holding the pedal to the floor for a significant amount of time, you're lugging the engine and need to downshift to 3rd.

With your current gears and tires, I would use 3rd to accelerate to whatever highway speed you need and then use 4th to hold that speed. You would still need to downshift to 3rd for any inclines or to accelerate. Any hilly sections, or sections with a lot of traffic I might just leave it in 3rd. With your current gears, I would almost never touch 5th.

But ultimately, you desperately need a regear.

I can regear the rear and do the front later as long as I absolutely do not engage 4wd for the time being? Also do I only need to buy the ring and pinion for a regear job? I have a buddy’s dad who has been a mechanic for 35 years who said he could do the job just wondering what all I need to supply him with