TheDieselPage.com Forums  
2014 - TDP's 19th Year
What's New: | Feature Articles: | Product Reviews: | Member's Area: | Subscribe:
Duramax 6600 Diesel Page | Advertiser's Section | Classified Ads | Photo Album | Diesel Books, GM Licensed T-shirts


Go Back   TheDieselPage.com Forums > The Diesel Page Member Forums > 1982-2000 C/K Truck & SUV Chassis & Drivetrain
Register FAQ Members List Photo Album Mark Forums Read

Reply
 
Thread Tools Display Modes
  #1  
Old 01-30-2007, 04:59 PM
xtrempickup's Avatar
xtrempickup xtrempickup is offline
Z71 Off Roading
 
Join Date: Dec 2006
Location: NJ
Posts: 157
Default 95 6.5L K2500 4x4 what kind of rear diff?

I was wondering what kind of rear diff is in my stock 95 6.5L 2500 Sierra 4x4 because I've been looking at the HD2500 trucks and they come with a posi rear. Not sure if mine is just a regular open diff or if its some sort of weak limited slip. can anybody tell me. what kind of options do i have for making it a posi rear? make just get the diff from a newer 2500 HP truck and make it work with the right gear ratio
__________________
95 GMC Sierra 2500 4x4 6.5L turbo ext cab 6ft bed ( relocated NEW PMD with cooler, running so far so good) SOLD SOLD SOLD

95 Chevy Silverado 1500 4x4 Z71 stepside 350V8
Reply With Quote
  #2  
Old 01-31-2007, 03:18 AM
C.K. Piquup C.K. Piquup is offline
Contributor
 
Join Date: Jan 2003
Location: Old Line State
Posts: 103
Default

Do you have 6 or 8 lugs(14-bolt semi-floating)?There were light and heavy 2500s.If 8,does the rear hub stick out like a front hub on the old-style 4wds(14-bolt full-floating)?It cold be open or could be the Gov-Loc,as limited-slip/locking diff.
__________________
aka:Tim

`91 V2500 Scottsdale Suburban:6.2 4L80E 4"Lift 35s
`92 K3500 SLE SRW:Peninsular6.5TD Peninsular 5spd
`72 K20 CustomDeluxe Highlander CustomCamper
`72 K20 CheyenneSuper CustomCamper
`72 K2500 SierraGrande
`71 K10 CustomDeluxe 6' Fleetside
Reply With Quote
  #3  
Old 01-31-2007, 04:08 AM
xtrempickup's Avatar
xtrempickup xtrempickup is offline
Z71 Off Roading
 
Join Date: Dec 2006
Location: NJ
Posts: 157
Default

6 lugs, i'm guessing its the open diff and nothing sticking out
__________________
95 GMC Sierra 2500 4x4 6.5L turbo ext cab 6ft bed ( relocated NEW PMD with cooler, running so far so good) SOLD SOLD SOLD

95 Chevy Silverado 1500 4x4 Z71 stepside 350V8
Reply With Quote
  #4  
Old 01-31-2007, 07:18 AM
joed joed is offline
Enthusiast
 
Join Date: Mar 2000
Location: Brighton, CO, USA
Posts: 417
Default Look at your RPO codes...

Being a 6 lug, you have a semi-floater, but could still have a locker.

For the locker, the easiest way to tell is to look up your codes on the glovebox sticker. Look for a code "G80" - this indicates you have the factory locking differential. You can also tell gear ratio, GT4=3.73, GT5=4.10, GU6=3.42, etc.

Also, I'm not sure the newer HD trucks automatically come with a locker, just seems that most are equipped that way.

Hope that helps.

Joe.
__________________
2006 Chevy K2500 LLY Duramax/Allison Crew Cab!
1996 Chevy C2500 6.5 auto Ext. Cab LB
Reply With Quote
  #5  
Old 01-31-2007, 08:11 AM
Shikaroka Shikaroka is offline
The Todd
 
Join Date: Jun 2006
Location: St. Albans, WV
Posts: 370
Default

Huh.....
It's a 3/4 ton (2500), right? I thought 3/4 tons were 8 lug, and I thought all the diesel trucks were 8 lug. I guess I was wrong??
__________________
96 Suburban K2500 6.5L TD. High miles and daily driven (for now). Remote mount FSD with cooler, Turbo Master/Boost fooler, 4" Jardine turbo back exhaust, 2.5" cross-over pipe, Boost, EGT, & Tranny temp gauges, working on more.
Reply With Quote
  #6  
Old 01-31-2007, 09:39 AM
DmaxMaverick DmaxMaverick is offline
Administrator
 
Join Date: Apr 2001
Location: CA
Posts: 10,593
Arrow

Quote:
Originally Posted by Shikaroka
Huh.....
It's a 3/4 ton (2500), right? I thought 3/4 tons were 8 lug, and I thought all the diesel trucks were 8 lug. I guess I was wrong??
LD (Light Duty) is 7200# GVWR, and semi-floater 6 lug r/e. Also equipped with the same smog as the 1/2 tons in most states.

HD (Heavy Duty) is 8600# GVWR, and full floater 8 lug r/e.

However, I've seen factory LD's with 8 lug full floaters, too, with no rhyme or reason for it, and the same RPO's as the LD's.

2500 Suburbans were all 8600 GVWR.
__________________
1985 Blazer 6.2
2001 GMC 2500HD D/A
2014 Chevy Cruze Diesel
dmaxmaverick@thedieselpage.com
Reply With Quote
  #7  
Old 01-31-2007, 01:00 PM
Colorado Kid's Avatar
Colorado Kid Colorado Kid is offline
Enthusiast
 
Join Date: Jul 2001
Location: Windsor, Colorado, USA
Posts: 572
Default

And just to cause further confustication 1500 Suburbans with 6.5 Diesel engines had 8 lug wheels and the semi-floater 9.25" 14-bolt.
__________________
2002 GMC Sierra 2500HD CC D/ZF SB Fire Red 2WD no longer the fastest stocker up the hill at the TDP Pull Off. -sold-
2004 Chevy Suburban 5.3L 2WD
1996 GMC Sierra 1500 5.0L 5sp 2WD LB
Reply With Quote
  #8  
Old 01-31-2007, 01:31 PM
xtrempickup's Avatar
xtrempickup xtrempickup is offline
Z71 Off Roading
 
Join Date: Dec 2006
Location: NJ
Posts: 157
Default

yea it is confusing as i thought all the 2500 and up trucks had 8 lug. when i got this is was very surprised, i just sold my gas with a 6 lug with new tires on AR wheels that I could have used. oh well, i'll check the glove box codes and see. I see GT4 which i guess means my gear ratio is 3.73. Rear is 14 bolt. Is that any good with the 305/70/17 in tires that I have on? No code for a limited slip, I guess might just be the standard crappy rear. Any idea what to look for if i go to a junkyard like in gas and diesel trucks to find a factory locker or posi rear? http://www.jegs.com/webapp/wcs/store...0002_750876_-1 found this Eaton LSD for 497$, looks like it should be the right one, do these trucks have 33 spline axles? Also is PowerTrax which is a locker type set up that fits and is about 470$?
__________________
95 GMC Sierra 2500 4x4 6.5L turbo ext cab 6ft bed ( relocated NEW PMD with cooler, running so far so good) SOLD SOLD SOLD

95 Chevy Silverado 1500 4x4 Z71 stepside 350V8

Last edited by xtrempickup; 01-31-2007 at 04:33 PM.
Reply With Quote
  #9  
Old 02-02-2007, 09:13 AM
Shikaroka Shikaroka is offline
The Todd
 
Join Date: Jun 2006
Location: St. Albans, WV
Posts: 370
Default

I should have known it was not so cut-and-dry.
__________________
96 Suburban K2500 6.5L TD. High miles and daily driven (for now). Remote mount FSD with cooler, Turbo Master/Boost fooler, 4" Jardine turbo back exhaust, 2.5" cross-over pipe, Boost, EGT, & Tranny temp gauges, working on more.
Reply With Quote
Reply

Thread Tools
Display Modes

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 -7. The time now is 09:28 AM.


Powered by vBulletin® Version 3.8.2
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright 1996-2014 by TheDieselPage.com - All Rights Reserved