I have an '07 JK 4dr Unlimited X automatic. I have 37x13.50R17s on it, and am looking to regear. I believe it comes with 4.11s, and I'm looking at 4.88s, I don't know if 5.13s might be better.
All the threads I've read have been about manuals, and the automatic should have a different OD ratio. Right now, I'm at about 2,800 rpms, going 75mph on the hwy. I don't want my gear ratio so high that I can't go over 60mph.
Looking for advice and help on someone that's done it... with an automatic.
Thanks.
Also.... checking prices, the average is about $1,500 to have them regeared... that's including parts. So... about $1k of labor. I'm mechanically inclined, never changed a transmission, but the usual crap, oil, tires, brakes, none of which is remotely hard. So I'm wondering if doing the regearing yourself is possible, or if that's just a nightmare waiting to happen. I don't mind difficult and complicated, I just don't want to eff something up and strip my gears, have to buy a new axle, etc. If it is possible, how many hours of work did it take you?
All the threads I've read have been about manuals, and the automatic should have a different OD ratio. Right now, I'm at about 2,800 rpms, going 75mph on the hwy. I don't want my gear ratio so high that I can't go over 60mph.
Looking for advice and help on someone that's done it... with an automatic.
Thanks.
Also.... checking prices, the average is about $1,500 to have them regeared... that's including parts. So... about $1k of labor. I'm mechanically inclined, never changed a transmission, but the usual crap, oil, tires, brakes, none of which is remotely hard. So I'm wondering if doing the regearing yourself is possible, or if that's just a nightmare waiting to happen. I don't mind difficult and complicated, I just don't want to eff something up and strip my gears, have to buy a new axle, etc. If it is possible, how many hours of work did it take you?