Go Back   C.O.R.E. FORUM > Campfire > Tech and How-To
Gallery FAQ Community Calendar Today's Posts Search

Reply
 
Thread Tools Display Modes
Old 06-04-2010, 08:13 AM   #1
Cribbetr
 
Join Date: Jan 2010
Location: Cincinnati
Posts: 14
Dana 30 high or Low pinion

I have a 91 YJ I'm wanting to replace the stock gears 3.07 with 4.10 I know I need a bigger carrier. The question i have is how do I tell if I have a high or low pinion.
Cribbetr is offline   Reply With Quote
Old 06-04-2010, 09:27 AM   #2
RuffedUpXJ
On XJ 2 Now
 
RuffedUpXJ's Avatar
 
Join Date: Feb 2007
Location: Fairfield Twp.
Posts: 314
Send a message via AIM to RuffedUpXJ
Quote:
Originally Posted by Cribbetr View Post
I have a 91 YJ I'm wanting to replace the stock gears 3.07 with 4.10 I know I need a bigger carrier. The question i have is how do I tell if I have a high or low pinion.
WEll high pinion reffers to the pinion being on top on the axle center line. So High pinion is nicer to have since your driveshaft starts out high on the axle, farther away from the rocks and also lesser angles on the drive shaft.

Also, I think yours should have a low pinion from the factory. So an upgrade would be the high pinion but they mount differently since a XJ has coils in the front and your YJ has leaves.
__________________
88 XJ - 5" lift - 35" BFG's - Bumpers - Rock Rails - Homebrewed OBA - Roof Rack - Tube Doors - Trimmed - Dented

87 XJ - D44 - Disco D30 - 235's - 231TC - Stock for now
RuffedUpXJ is offline   Reply With Quote
Old 06-04-2010, 11:13 PM   #3
sarge
Pure Bacon
 
sarge's Avatar
 
Join Date: Jan 2007
Location: Trenton, Oh
Posts: 1,098
91 YJ is High pinion 30
sarge is offline   Reply With Quote
Old 06-07-2010, 11:13 AM   #4
jfiscus
Terrain Stomper
 
jfiscus's Avatar
 
Join Date: Feb 2007
Location: Crittenden, KY
Posts: 633
I think the Low-Pinions started with the TJs & XJs of the same year that they started making TJs. ('97?) Anything prior to that was a HP D30.
jfiscus is offline   Reply With Quote
Old 06-07-2010, 12:09 PM   #5
RuffedUpXJ
On XJ 2 Now
 
RuffedUpXJ's Avatar
 
Join Date: Feb 2007
Location: Fairfield Twp.
Posts: 314
Send a message via AIM to RuffedUpXJ
My bad, i guess i shouldn't trust quick searches on line.
__________________
88 XJ - 5" lift - 35" BFG's - Bumpers - Rock Rails - Homebrewed OBA - Roof Rack - Tube Doors - Trimmed - Dented

87 XJ - D44 - Disco D30 - 235's - 231TC - Stock for now
RuffedUpXJ is offline   Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 03:07 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 2021, C.O.R.E. All rights reserved.