Cherokee Chat General non-tech Cherokee chat
XJ/MJ/ZJ/WJ

Matching my gear ratios

Old 09-08-2018, 11:31 PM
  #1  
Newbie
Thread Starter
 
Join Date: Sep 2018
Posts: 3
Likes: 0
Received 0 Likes on 0 Posts
Model: Cherokee (XJ)
Default Matching my gear ratios

Ok, so I bought a 97 Cherokee XJ manual 5 speed about a month ago.. Whoever had it before me had 4.10 years in the front and 3.07 in the rear.. It was in a bond of course and the ring gear in the front lost about 4 teeth.. Anyone know if I can just replace the ring gear and not have to have a new pinion too?? I would rather just get a 4.10 rear to match instead of matching the 3.07's.. Plus it has 34" super swampers sooo 3.07's wont do me much good.
D-wayne is offline  
Old 09-09-2018, 06:28 AM
  #2  
CF Veteran
 
Battle's Avatar
 
Join Date: May 2013
Location: Rochester, NY
Posts: 2,058
Likes: 0
Received 0 Likes on 0 Posts
Year: 1997
Model: Cherokee
Engine: 4.0
Default

Why would you want to just replace the ring gear? I'm sure the pinion is beat up too. Also, who put it in 4wd with mis-matched gears? You or the previous owner? Be honest...
Battle is offline  
Old 09-09-2018, 07:51 AM
  #3  
TIME TO GET SCHWIFTY
 
roninofako's Avatar
 
Join Date: Feb 2011
Location: Apple Valley, CA
Posts: 13,111
Likes: 0
Received 0 Likes on 0 Posts
Year: 97
Model: Cherokee
Engine: 4.6 stroker
Default

Easy and cheap, swap in JY axles in 3:55 ratio. CL for some 33s.

You won't be able to replace just the ring gear. You need to reset the pinion depth to the new ring, which means master rebuild kit, which means might as well replace pinion too. And, so this doesn't happen again, you of course need to do the same on the other axle...so no matter what, keeping what you have means total rebuilds on both axles.

If it were me, do as I suggest with JY and CL, then bench rebuild the other axles as time and money allow, and do it right, get the ratios you want to run, the master install kit's, and lockers if you can...you don't want to do the same job twice, haha
roninofako is offline  
Old 09-09-2018, 08:58 AM
  #4  
CF Veteran
 
00t444e's Avatar
 
Join Date: Nov 2015
Location: Southern OH
Posts: 1,964
Received 2 Likes on 2 Posts
Year: 1997
Model: Cherokee(XJ)
Engine: 4.0
Default

You can't replace just the ring gear. A ring and pinion is a matching set and you can't mix them or you will have issues with noise or getting the pattern correct.
00t444e is offline  
Old 09-09-2018, 12:02 PM
  #5  
Newbie
Thread Starter
 
Join Date: Sep 2018
Posts: 3
Likes: 0
Received 0 Likes on 0 Posts
Model: Cherokee (XJ)
Default

I figured I wouldn't be able to, it just looked brand new and I've never worked with pinions.
D-wayne is offline  
Old 09-09-2018, 12:07 PM
  #6  
Newbie
Thread Starter
 
Join Date: Sep 2018
Posts: 3
Likes: 0
Received 0 Likes on 0 Posts
Model: Cherokee (XJ)
Default

Originally Posted by roninofako View Post
Easy and cheap, swap in JY axles in 3:55 ratio. CL for some 33s.

You won't be able to replace just the ring gear. You need to reset the pinion depth to the new ring, which means master rebuild kit, which means might as well replace pinion too. And, so this doesn't happen again, you of course need to do the same on the other axle...so no matter what, keeping what you have means total rebuilds on both axles.

If it were me, do as I suggest with JY and CL, then bench rebuild the other axles as time and money allow, and do it right, get the ratios you want to run, the master install kit's, and lockers if you can...you don't want to do the same job twice, haha
I didnt know for sure if I YJ would align right. Im sure 355's will be better than these 307's. like right now I can climb certain hills without locking it in 4 low lol
D-wayne is offline  
Old 09-09-2018, 12:22 PM
  #7  
TIME TO GET SCHWIFTY
 
roninofako's Avatar
 
Join Date: Feb 2011
Location: Apple Valley, CA
Posts: 13,111
Likes: 0
Received 0 Likes on 0 Posts
Year: 97
Model: Cherokee
Engine: 4.6 stroker
Default

Not YJ...JY. JunkYard, lol. Find another XJ with a high pinion D30 and Corporate 8.25 in 3:55 ratio, it was pretty common.

CL is Craigslist, find a set of tires/wheels in 33", and that should get you by on the cheap until you can build up your dream axles, lol

Last edited by roninofako; 09-09-2018 at 12:24 PM.
roninofako is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
younggun96
Axles/Tires/Wheels
3
12-13-2014 03:29 PM
BigBear
Modified XJ Cherokee Tech
15
10-30-2012 08:33 PM
bentandtwisted
Modified XJ Cherokee Tech
5
02-21-2012 07:54 PM
Wolf9857
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
6
02-20-2011 02:40 PM
hullb86
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
11
04-02-2009 10:22 AM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 

Thread Tools
Search this Thread
Quick Reply: Matching my gear ratios


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: