14 bolt gear setup pattern - Great Lakes 4x4. The largest offroad forum in the Midwest

Go Back   Great Lakes 4x4. The largest offroad forum in the Midwest > 4x4 Talk > Axle Tech
GL4x4 Live! GL4x4 Casino

greatlakes4x4.com is the premier Great Lakes 4x4 Forum on the internet. Registered Users do not see the above ads.
Search
Reply
 
Thread Tools Search this Thread
Old March 4th, 2013, 10:46 PM   #1
Doc
Senior Member
 
Doc's Avatar
 
Join Date: 01-09-11
Location: Burton, Mi
Posts: 300
iTrader: (19)
Mentioned: 1 Post(s)
Default 14 bolt gear setup pattern

Need to know where to go from this. These are used gears.




Last edited by Doc; March 5th, 2013 at 10:23 PM.
Doc is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old March 5th, 2013, 10:28 PM   #2
MiNi Beast
Senior Member
 
MiNi Beast's Avatar
 
Join Date: 03-13-06
Location: Marquette, MI
Posts: 9,005
iTrader: (75)
Mentioned: 0 Post(s)
Default

What's your backlash look like?
MiNi Beast is offline   Reply With Quote
Old March 5th, 2013, 10:36 PM   #3
Doc
Senior Member
 
Doc's Avatar
 
Join Date: 01-09-11
Location: Burton, Mi
Posts: 300
iTrader: (19)
Mentioned: 1 Post(s)
Default

Quote:
Originally Posted by mini beast View Post
what's your backlash look like?
.007
Doc is offline   Reply With Quote
Old March 5th, 2013, 10:45 PM   #4
MiNi Beast
Senior Member
 
MiNi Beast's Avatar
 
Join Date: 03-13-06
Location: Marquette, MI
Posts: 9,005
iTrader: (75)
Mentioned: 0 Post(s)
Default

What's that to the spec? Then add to go down and take away shims to go foward.
MiNi Beast is offline   Reply With Quote
Old March 5th, 2013, 10:50 PM   #5
Doc
Senior Member
 
Doc's Avatar
 
Join Date: 01-09-11
Location: Burton, Mi
Posts: 300
iTrader: (19)
Mentioned: 1 Post(s)
Default

Backlash should be between .003" - .012", with .005"-.008" preferred
Doc is offline   Reply With Quote
Old March 5th, 2013, 10:54 PM   #6
Doc
Senior Member
 
Doc's Avatar
 
Join Date: 01-09-11
Location: Burton, Mi
Posts: 300
iTrader: (19)
Mentioned: 1 Post(s)
Default

Quote:
Originally Posted by MiNi Beast View Post
What's that to the spec? Then add to go down and take away shims to go foward.
Add shims to the pinion?
don't understand what you mean by down in forward, need a reference point to go off of.
Doc is offline   Reply With Quote
Old March 5th, 2013, 11:00 PM   #7
MiNi Beast
Senior Member
 
MiNi Beast's Avatar
 
Join Date: 03-13-06
Location: Marquette, MI
Posts: 9,005
iTrader: (75)
Mentioned: 0 Post(s)
Default

Need to move the ring gear away from the pinion, more backlash basically.
MiNi Beast is offline   Reply With Quote
Old March 5th, 2013, 11:05 PM   #8
Doc
Senior Member
 
Doc's Avatar
 
Join Date: 01-09-11
Location: Burton, Mi
Posts: 300
iTrader: (19)
Mentioned: 1 Post(s)
Default

Quote:
Originally Posted by MiNi Beast View Post
Need to move the ring gear away from the pinion, more backlash basically.
Alright. I'll try it tomorrow.
Doc is offline   Reply With Quote
Old March 5th, 2013, 11:07 PM   #9
Doc
Senior Member
 
Doc's Avatar
 
Join Date: 01-09-11
Location: Burton, Mi
Posts: 300
iTrader: (19)
Mentioned: 1 Post(s)
Default

Quote:
Originally Posted by Doc View Post
Alright. I'll try it tomorrow.
Thanks by the way.
Doc is offline   Reply With Quote
Old March 6th, 2013, 06:11 AM   #10
Doc
Senior Member
 
Doc's Avatar
 
Join Date: 01-09-11
Location: Burton, Mi
Posts: 300
iTrader: (19)
Mentioned: 1 Post(s)
Default

Quote:
Originally Posted by deerebowtie View Post
get more load on the pinion or shove an axle shaft back in and let the tire drag the ground while you roll the gears around. your contact patterns is hard to read
I'll try dragging a tire on the ground. Ive put 50 pounds of torque on the pinion (14 bolt setup "bible" recommends that much) and it just won't leave a good pattern.
Doc is offline   Reply With Quote
Old March 6th, 2013, 06:42 AM   #11
Ironman Offroad
Cool parts peddler
 
Ironman Offroad's Avatar
 
Join Date: 07-29-10
Location: Saginaw, Michigan
Posts: 1,546
iTrader: (12)
Mentioned: 11 Post(s)
Default

Used gear set patterns are always a crap shoot. I would not expect a great pattern and live with good. You did settle for used stuff.
Looks like you need to move the pinion away from the CL (more shim) then readjust your backlash.
Proper bearing preload will usually create a decent impression. I use a box wrench on a ring gear bolt to turn the carrier and let the pinion bearing preload create the load with great success.
I hope this helps.
Ironman Offroad is offline   Reply With Quote
Old March 9th, 2013, 11:04 AM   #12
Doc
Senior Member
 
Doc's Avatar
 
Join Date: 01-09-11
Location: Burton, Mi
Posts: 300
iTrader: (19)
Mentioned: 1 Post(s)
Default

Going to try and tackle it again this weekend. I'm assuming I'm going to have to keep shimming it out and adjusting backlash, then checking the pattern.

I would be happy settling for a non-perfect pattern, just trying to make the best out of what i have. Got a really good deal on the front and rear gears, and the right carriers (original was toast on 14 bolt)

Also had machine work done to 14 bolt ring gear and didn't want to risk screwing up a new one.
Doc is offline   Reply With Quote
Old March 9th, 2013, 11:06 AM   #13
Doc
Senior Member
 
Doc's Avatar
 
Join Date: 01-09-11
Location: Burton, Mi
Posts: 300
iTrader: (19)
Mentioned: 1 Post(s)
Default

Can anyone make a guess on how much more this needs to be shimmed out?
Doc is offline   Reply With Quote
Old March 9th, 2013, 05:27 PM   #14
MiNi Beast
Senior Member
 
MiNi Beast's Avatar
 
Join Date: 03-13-06
Location: Marquette, MI
Posts: 9,005
iTrader: (75)
Mentioned: 0 Post(s)
Default

Are you just winging it or do you have the ideal spec in front of you? There are ideal numbers for you to reference from. Typically you start with that standered number and work either forward or back. I know Randy's ring and pinion has a great book out there all about gears and diffs! I used it when set my gears up.
MiNi Beast is offline   Reply With Quote
Old March 10th, 2013, 09:25 PM   #15
moparhorse
Senior Member
 
moparhorse's Avatar
 
Join Date: 10-31-12
Location: Beaverton
Posts: 681
iTrader: (4)
Mentioned: 0 Post(s)
Default

I would try to shim the pinion away from the carrier .010 or .015 thousandths and re-check it. The best way to setup used gears is to check the pattern and backlash before pulling the gears out to swap into another axle. Most people cant do this because they just have the gears and not the whole alxe
moparhorse is offline   Reply With Quote
Old March 11th, 2013, 04:46 PM   #16
Doc
Senior Member
 
Doc's Avatar
 
Join Date: 01-09-11
Location: Burton, Mi
Posts: 300
iTrader: (19)
Mentioned: 1 Post(s)
Default

Pulled the axle so i'm going to set up the gears out of the vehicle. Whole process has been a pain in the ass so far. I shimed the pinion out further but i still have to re-adjust backlash and check the pattern Again. Once i get to that ill put up some more pictures.

Looked at randy's, didn't see the book but found a yukon install guide.

I don't have an ideal number or know where to find it.
Doc is offline   Reply With Quote
Old March 11th, 2013, 07:22 PM   #17
Tab
Senior Member
 
Tab's Avatar
 
Join Date: 11-05-05
Location: Freeland, mi
Posts: 4,890
iTrader: (29)
Mentioned: 7 Post(s)
Default

The ideal number charts are for new gears, not used. Get the pattern the best you can, the backlash within reason, and run it.
Tab is online now   Reply With Quote
Old March 11th, 2013, 07:32 PM   #18
bigbchevy
missmrgreenagain
 
bigbchevy's Avatar
 
Join Date: 09-15-07
Location: fenton /hartland mi
Posts: 19,330
iTrader: (167)
Mentioned: 64 Post(s)
Default

Quote:
Originally Posted by Tab View Post
The ideal number charts are for new gears, not used. Get the pattern the best you can, the backlash within reason, and run it.
This
__________________
H.o.r.e
(mr.green)So you are calling CC a liar?? Not a nice way to treat your bitch.
tube bending and gear installs pm me for info! gears installed for $150 and up per axle.
bigbchevy is online now   Reply With Quote
Old March 11th, 2013, 10:48 PM   #19
moparhorse
Senior Member
 
moparhorse's Avatar
 
Join Date: 10-31-12
Location: Beaverton
Posts: 681
iTrader: (4)
Mentioned: 0 Post(s)
Default

I had to set the backlash on a old corporate axle, 9'' rear end style and had the backlash a .015 for it to be runnable. Good thing with used gears and 14bolts are that they are cheap
moparhorse is offline   Reply With Quote
Old March 13th, 2013, 09:00 PM   #20
Doc
Senior Member
 
Doc's Avatar
 
Join Date: 01-09-11
Location: Burton, Mi
Posts: 300
iTrader: (19)
Mentioned: 1 Post(s)
Default

More pictures.

.0033 pinion shim
.004 backlash

Still looks like shit, but I don't know where to go.



Doc is offline   Reply With Quote
Reply
Great Lakes 4x4. The largest offroad forum in the Midwest > 4x4 Talk > Axle Tech

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 -5. The time now is 09:17 AM.


Powered by: vBulletin, Copyright 2000 - 2012, Jelsoft Enterprises Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd. Runs best on HiVelocity Hosting.
Page generated in 0.23429 seconds with 81 queries