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HungerFatz 05-19-2013 02:01 PM

new YJ questions
I just hire a 93 yj last week and after some research and looking under my jeep i have determined i only have a 1" shackle lift and i have 3.07 gears. The Jeep came with 33x12.5x15 tires which will need to be replaced soon. The 33's rub the springs at very tight turns and with the lack of lift and the gears would i be better off with 31's? Also should i go with something skinnier? My use is weekend driving around town and forest roads/light trails. Thanks fur the help guys!

jcbrindle 05-19-2013 02:19 PM

Sounds like you need some 31x10.5 tires. I can't imagine having 3.07 gears ??? It must be a real dog on power with 33's. Do you have the 4.0 or the 2.5 engine? What wheels do you have? If they are factory wheels, that would be part of your problem. They have a ton of back spacing and that is why your hitting the springs. Most guys run wheels with around 3.5" of back spacing vs the factory ones with 5.25".

HungerFatz 05-19-2013 02:34 PM

I have the 4.0 and honestly the power isn't TOO bad, not great up I can keep up on the highway. Of course being my first Jeep i don't have much to base it off of. If i didn't need tires I'd look into an axle swap but i just bought the jeep plus i need tires anyway so it makes since to go a little smaller for this round

bajonesy77 05-19-2013 02:56 PM

Get some 31x10.50 they shouldn't rub and will give you some power back plus cost less than the 33's. Are you sure its only got 1" of lift? Most yj with a 1" shackle or body lift only run 31's anyway, the 33's have to be very close if not rubbing the flares.

HungerFatz 05-19-2013 03:19 PM

I measured the shackles as 6" so i believe that means 1"of lift. I Also measured the ground to rocker panels at 22". With 33" tires that would mean 1" lift correct? I haven't had any issues with rubbing the flares just the leaf in very sharp turns. Then again it has aftermarket fender flares

AllMudd 05-19-2013 03:28 PM

6" from top to bottom or bolt center to bolt center? Because stock shackles are 6" from top to bottom and 4" bolt center to bolt center. Take some pics of your suspension, and it may help us determine if you have a shackle, body, or maybe even a suspension lift. Also do you have a TC drop?

HungerFatz 05-19-2013 03:37 PM

Ah...yeah 6" from top to bottom... Ler me go take pics. I have no idea if there I'd a TC drop, or what it would look like...I'm a complete newb.

HungerFatz 05-19-2013 03:51 PM

5 Attachment(s)
Here are some pics, everything looks stock to me

HungerFatz 05-19-2013 03:53 PM

1 Attachment(s)
And the shift knob FTW! ha i hated it first but it's growing on me

AllMudd 05-19-2013 04:15 PM

Ok so no body lift those are stock bushings. No shackle lift for those are stock shackles. Looks to be a suspension lift, if you look at the 1st picture you posted you can see the trans and transfer case crossmember. There is a 1" square tubing transfer case drop there. Transfer case drops are common upon 2" suspension lifts and higher to help with the rear drive shaft angle to reduce noise and vibrations. Here is a pick of my TC drop, it's a little more identifiable for you. So my best guess is since you have 33" tall tires now the previous owner or PO put a 2" suspension lift on there. It would be very hard to fit 33"s with no lift. There would be fenders missing to make it happen.

HungerFatz 05-19-2013 05:22 PM

Yea i guess that makes since because my tread is very low on my tires so if they were new I'd probably be measuring closer to 23" @ the rockers. How much difference does tire width affect performance on road vs. off with 3.07 gears?

AllMudd 05-19-2013 06:24 PM

Width, someone can argue the fact that wider tires catch more air and are heavier to turn over. But really you won't notice the width change on-road. Now off-road it helps, more tire in contact with whatever you are trying to conquer will help.

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