New gears!
10-06-2011 | 06:25 PM
#11
JK Newbie
Joined: Sep 2011
Posts: 56
Likes: 0
From: Houston, Texas
OK Not to highjack this tread but I'll be doing gears in the next 2 weeks but i just can figure out what brand should I get. Could you all please recommend what brand should i be looking into?
Thanks.
Thanks.
10-06-2011 | 06:44 PM
#12
Thread Starter
JK Enthusiast
Joined: Jan 2007
Posts: 169
Likes: 0
From: Lake Arrowhead, Ca
10-06-2011 | 06:55 PM
#13
JK Jedi Master
Joined: Aug 2007
Posts: 15,665
Likes: 3
From: Hammond Louisiana
So I've got about 350 miles on the new gears now. The gears themselves are doing great and I haven't had a single noise/problem. But the locker on the other hand...
It definitely handles differently with a locker in the back, but I expected that. But this is not what I expected... If I have my foot SLIGHTLY on the throttle (almost in a neutral position. Not accelerating, nor decelerating) when I go around corners it surges/lunges back and forth. Similar to the feeling of being in a car with a newly licensed teenage driver learning how to drive a stick. I have the Spartan Locker (lunchbox style similar to Ausie/Powertrax/Loc Right) and expected a little clanking and noise from it releasing but not like this! Some corners it's fine, some it's not. Like I said, it's mostly when I'm barely touching the gas.
The second thing I think is odd... When I shift gears for the first few gears there is a quick grind like the syncros arent doing their job. If I go slow it doesn't do it, or at least it's very faint. Anyone had this issue after changing gears? I've got 60,000 the motor/trans. But I NEVER had this problem before the new gears.
Other than that everything is good and I'm super stoked about my how my first gear install went! I've got a set of 37's I'm going to put on to see if they would be a good fit so after I drive it around with those I'll let you know how I like te 4.88/37's combo over the 4.88/35's combo.
It definitely handles differently with a locker in the back, but I expected that. But this is not what I expected... If I have my foot SLIGHTLY on the throttle (almost in a neutral position. Not accelerating, nor decelerating) when I go around corners it surges/lunges back and forth. Similar to the feeling of being in a car with a newly licensed teenage driver learning how to drive a stick. I have the Spartan Locker (lunchbox style similar to Ausie/Powertrax/Loc Right) and expected a little clanking and noise from it releasing but not like this! Some corners it's fine, some it's not. Like I said, it's mostly when I'm barely touching the gas.
The second thing I think is odd... When I shift gears for the first few gears there is a quick grind like the syncros arent doing their job. If I go slow it doesn't do it, or at least it's very faint. Anyone had this issue after changing gears? I've got 60,000 the motor/trans. But I NEVER had this problem before the new gears.
Other than that everything is good and I'm super stoked about my how my first gear install went! I've got a set of 37's I'm going to put on to see if they would be a good fit so after I drive it around with those I'll let you know how I like te 4.88/37's combo over the 4.88/35's combo.
10-16-2011 | 10:15 PM
#14
Thread Starter
JK Enthusiast
Joined: Jan 2007
Posts: 169
Likes: 0
From: Lake Arrowhead, Ca
Update: I finally got around to putting my buddies old 37's on the jeep after the 4.88's got installed. Man way a difference over the 35's!!!!!! When I had the 35's on there was WAY more power off the line but I still seemed to be struggling in 4/5/6 gears. I think it's because the gearing was TOO low and the shift points were at the wrong speeds. After I put the 37's on, it change all the shift points and is pretty damn perfect!!! I have more power in 3/4/5/6 gears now because instead of being at 40 MPH in 4th gear doing 2300 RPM, I'm in 3rd gear doing 25/2700 RPM. By dropping that gear and having a little higher RPM it made way more power. It also calmed down the locker somehow and it surges around corners a lot less now.
So out of this experience: I say if you want to run 35's as a daily driver I would run 4.56's with the 6 speed because 4.88's are just TOO low. If you want to run 37's with a 6 speed, go with the 4.88's. It's got good power off the line, decent freeway RPM's, and plenty of power all the way through. If you want it to have a lower crawl ratio, swap out to the 241OR for the 4:1.
So out of this experience: I say if you want to run 35's as a daily driver I would run 4.56's with the 6 speed because 4.88's are just TOO low. If you want to run 37's with a 6 speed, go with the 4.88's. It's got good power off the line, decent freeway RPM's, and plenty of power all the way through. If you want it to have a lower crawl ratio, swap out to the 241OR for the 4:1.
