Duramax Diesels Forum Truck of the Week
  #31  
Old 07-30-2015, 10:54 AM
c20elephant's Avatar
c20elephant c20elephant is offline
C20ELEPHANT
 
Join Date: Apr 2013
Location: Phoenix, Arizona
Posts: 2,065
Default

Quote:
Originally Posted by OregonDMAX View Post
I wonder if the steering box mounting plate on the frame for gmt800 is similar to older platforms, yeah why would you want to go older most would say but then again some of the older boxes like say from the 73-87(91) platform were pretty stout. Just a thought
My 82 C20 has the same steering gear as my Dmax, GM used this bolt pattern and steering box dating back to the late 60's, 1968 for sure. Starting about 2007 GM went to a 670 and a 680 steering gear box up to 2010 maintaining the same bolt pattern and depth of the mounting ears for the trucks. The 670 box was part of the TSB regarding difficult slow parking lot maneuvers, part of the fix was installing a 680 box which had 4 bolts at the snout as opposed to the 3 on the 670.(and in some cases a flow valve in the P/S pump)
__________________
~Mike~
2006 2500HD EXTENDED CAB LONGBED
Reply With Quote
  #32  
Old 07-30-2015, 12:35 PM
THEFERMANATOR's Avatar
THEFERMANATOR THEFERMANATOR is offline
LEGALLY INSANE
 
Join Date: Feb 2009
Location: ZEPHYRHILLS, FL
Posts: 3,632
Default

Quote:
Originally Posted by c20elephant View Post
My 82 C20 has the same steering gear as my Dmax, GM used this bolt pattern and steering box dating back to the late 60's, 1968 for sure. Starting about 2007 GM went to a 670 and a 680 steering gear box up to 2010 maintaining the same bolt pattern and depth of the mounting ears for the trucks. The 670 box was part of the TSB regarding difficult slow parking lot maneuvers, part of the fix was installing a 680 box which had 4 bolts at the snout as opposed to the 3 on the 670.(and in some cases a flow valve in the P/S pump)
Well I can assure you that boxes used on GMT-400's ARE different as I tried to put a new style off my 01 donor onto my BURB and it was a no go. I'm on the lookout now for another box as my AGR with 50K miles is done.
__________________
1995 GMC 2500 SUBURBAN powered by 01 DURAMAX/ALLISON, little of this, a little of that,
DIAMONDEYE 4" exhaust, CORSA muffler, AFE stage 1 dry filter, custom tuning by me, KENNEDY single pump and pump rub kit.

Reply With Quote
  #33  
Old 07-30-2015, 12:41 PM
c20elephant's Avatar
c20elephant c20elephant is offline
C20ELEPHANT
 
Join Date: Apr 2013
Location: Phoenix, Arizona
Posts: 2,065
Default

Quote:
Originally Posted by THEFERMANATOR View Post
Well I can assure you that boxes used on GMT-400's ARE different as I tried to put a new style off my 01 donor onto my BURB and it was a no go. I'm on the lookout now for another box as my AGR with 50K miles is done.
Were the mounting ears different or the input shaft.? Essentially the same box. I picked up a 80,000 mile core for mine to have rebuilt locally when mine quits/leaks so I hopefully have little downtime...
__________________
~Mike~
2006 2500HD EXTENDED CAB LONGBED

Last edited by c20elephant; 07-30-2015 at 12:51 PM.
Reply With Quote
  #34  
Old 07-30-2015, 01:15 PM
THEFERMANATOR's Avatar
THEFERMANATOR THEFERMANATOR is offline
LEGALLY INSANE
 
Join Date: Feb 2009
Location: ZEPHYRHILLS, FL
Posts: 3,632
Default

Quote:
Originally Posted by c20elephant View Post
Were the mounting ears different or the input shaft.? Essentially the same box. I picked up a 80,000 mile core for mine to have rebuilt locally when mine quits/leaks so I hopefully have little downtime...
Everything was different. The box on the GMT-400 may match up to the early GMT-800 4X4 1500's, but defiantely not the 2500HD and bigger.
__________________
1995 GMC 2500 SUBURBAN powered by 01 DURAMAX/ALLISON, little of this, a little of that,
DIAMONDEYE 4" exhaust, CORSA muffler, AFE stage 1 dry filter, custom tuning by me, KENNEDY single pump and pump rub kit.

Reply With Quote
  #35  
Old 07-30-2015, 01:51 PM
c20elephant's Avatar
c20elephant c20elephant is offline
C20ELEPHANT
 
Join Date: Apr 2013
Location: Phoenix, Arizona
Posts: 2,065
Default

Oops, the steering gear was on the outside of the frame rail on the 1989 trucks and earlier, the steering gear was essentially the same.
__________________
~Mike~
2006 2500HD EXTENDED CAB LONGBED

Last edited by c20elephant; 07-30-2015 at 02:20 PM.
Reply With Quote
  #36  
Old 09-15-2015, 09:48 AM
schulte schulte is offline
Hotrodder

 
Join Date: Jul 2010
Location: CT
Posts: 449

Default

The first Red Head gear I got didn't last (as Ben said). They replaced it and I don't have too many miles on the new one but so far it's still OK.

PSC actually sold and upgraded gear for the GMT800's for a while, but were having reliability issues so they discontinued them.

IIRC the issue is with a bushing for the output end of the sector shaft.

Right now there is NO aftermarket/upgraded gear I've heard of that's got a 100% positive reputation.

Reman gears, regardless of whether they're cheap parts store (Advance auto, autozone, etc) or "GM Reman" are hit and miss. I've tried many of them. I have never found a source for a "new" 0 mile gear, but if I did I'm sure it would be $700+.

Low mile, unmolested, un-adjusted factory gears from junkyards or eBay are the way to go.
__________________
2004 CCSB LLY
Reply With Quote
  #37  
Old 09-15-2015, 12:05 PM
bml2200 bml2200 is offline
Hotrodder
 
Join Date: Oct 2008
Location: IL
Posts: 256
Default

Swapped in a Redhead steering box into my LBZ about 3 weeks ago. After 500 or so miles, I don't have any complaints.
__________________
2007 GMC 2500HD CC/SB SLE 4x4 LBZ- 68mm Cheetah w/ HX40 DP, Profab y-bridge, headers & up pipes, Big Dipper trans w/ 1058, Duramaxtuner, Cognito 4" NTBD w/ Deavers, FASS 150
2002 GMC 1500 ECSB SLT 2wd - DD
Sold: 2007 Chevy 2500HD CC/SB LTZ Z71 LMM Built
Sold: 2008 GMC 2500HD CC/SB SLT Z71 LMM Stockish
RIP: 2006 GMC 2500HD CC/SB SLT 4x4 LBZ Mild Build
Reply With Quote
  #38  
Old 12-21-2015, 06:56 PM
PSConvert PSConvert is offline
Old FNG
 
Join Date: May 2009
Location: SW Michigan
Posts: 30
Default

My first Redhead lasted just over a year before springing a leak. Redhead redesigned the pitman seal to further prevent the leaks.
I have one of the new ones sitting in the garage now thanks to RH. Just need to get the ambition to put it on now..... lol
__________________
['06 LBZ Siiverado LT 4x4 CC DRW - White
DiPricol Boost, Pyro and Trans in the A-pillar, FP & RP above the rearview, PVC Re-routed, Resonator capped, MA Stage 3 w/Allison Deep Pan, Dodge posi in the back, LDP traction bars, Diamond Eye Downpipe, Modded stock airbox, Redhead box, Rare tie rods, HSP Hot side, Few PPE goodies, 5" Flo-Pro out the back, All Season's delete, DSP-5, Danville tuned, 16" Alcoas all around
All headlight on mod, setup to tow about anything
Upcoming/Ongoing Mods:


Tuner only
14.93 ET and 2.0 60ft with a slippery trans

She's wide and a bit of a surprise.
Reply With Quote
  #39  
Old 12-21-2015, 07:17 PM
THEFERMANATOR's Avatar
THEFERMANATOR THEFERMANATOR is offline
LEGALLY INSANE
 
Join Date: Feb 2009
Location: ZEPHYRHILLS, FL
Posts: 3,632
Default

Mine just came in from them today. Hope to get it put in after Christmas. I will say I pulled it out of the box and rotated it with a crescent wrench, and it iss nice and tight. Hope it holds up better than my pos agr did.
__________________
1995 GMC 2500 SUBURBAN powered by 01 DURAMAX/ALLISON, little of this, a little of that,
DIAMONDEYE 4" exhaust, CORSA muffler, AFE stage 1 dry filter, custom tuning by me, KENNEDY single pump and pump rub kit.

Reply With Quote
  #40  
Old 12-22-2015, 04:00 PM
Ridin'GMC's Avatar
Ridin'GMC Ridin'GMC is offline
I like red
 
Join Date: May 2010
Location: MA
Posts: 592
Default

I have about 30k miles on my redhead. It's holding up very well after some hard off roading and I take corners like a race car. With all the previous gearbox I've had in the past, I had to keep readjusting them until the output shaft got loose from the bushing being worn out. Redhead corrected thus issue by replacing the bushing into needle bearings which is much stronger and retains a solid steering feedback. The only issue I have now is the idler support and arm taking a crap. Time to upgrade the last steering piece.
__________________
07 LBZ CCSB

RIP 4/1/17
06 LLY CCSB
Reply With Quote
  #41  
Old 03-27-2016, 06:32 AM
Turbojunkie77 Turbojunkie77 is offline
FNG
 
Join Date: Jun 2014
Location: Braselton, GA
Posts: 7
Default

Yeah I have gone through 4 reman pumps and a new Redhead pump (it only lasted 3k miles) and I have yet to find a solution. I have just about reached a point where I don't care he much money it takes to rectify the problem but I'm going to some it work!! I contacted Howe Performance to see what types of options they have for me. Even though the idea of buying a $1100 pump is crazy I'm sick of spending my afternoons replacing them so I would do it. Once I get this figured out the hopefully my new Dmaxstore upper control arms will cure my alignment issues eating the inside of my front tires. Any one with any other ideas please shout them out as I'm all ears.
__________________
2006 GMC 2500HD 4x4 with Built DTS trans, DTS 66mm vvt, EGR delete, FASS 150 lift pump, DTS down pipe, 6" lift kit with 37"x13.5"s Nitto Terra grapplers on 20x10s, Efi live tuned by DTS, 5" MBRP exhaust, Amsoil bypass oil filter, cognito tie rod ends and support kit all Amsoil synthetics MA pump rub,4.56 Gears (F&R) & Grizzly Diff
Reply With Quote
  #42  
Old 05-22-2016, 07:25 AM
mackthehack's Avatar
mackthehack mackthehack is offline
DUH...
 
Join Date: Apr 2007
Posts: 825
Default

Quote:
Originally Posted by Ridin'GMC View Post
I have about 30k miles on my redhead. It's holding up very well after some hard off roading and I take corners like a race car. With all the previous gearbox I've had in the past, I had to keep readjusting them until the output shaft got loose from the bushing being worn out. Redhead corrected thus issue by replacing the bushing into needle bearings which is much stronger and retains a solid steering feedback. The only issue I have now is the idler support and arm taking a crap. Time to upgrade the last steering piece.
Any updates on the Redhead box?
__________________
sas'd lbz with stuff
74 k10 with stuff
Reply With Quote
  #43  
Old 05-22-2016, 11:45 AM
Ridin'GMC's Avatar
Ridin'GMC Ridin'GMC is offline
I like red
 
Join Date: May 2010
Location: MA
Posts: 592
Default

Still working perfectly. Almost 50k miles on it and no leaks. Steering is still tight. I still beat on it pretty good on corners and some off-road. It's cheaper to buy it directly from red head, even after core charge refund, it's around 250 bucks for the box I paid. Definitely well worth it.
__________________
07 LBZ CCSB

RIP 4/1/17
06 LLY CCSB
Reply With Quote
  #44  
Old 05-22-2016, 01:46 PM
blownblue's Avatar
blownblue blownblue is offline
Gearhead
 
Join Date: Oct 2008
Location: Acme, WA
Posts: 60

Default

Could take a look at a AGR steering box. The sb2 meant for highway speeds is made from new castings. I have their sb1 on my wrangler crawler and it works great even with the abuse I give it.

http://www.agrperformance.com/GM-4x4...otorsports.htm
__________________
2008 2500hd 4WD CCSB with stuff..
Sdp twins, exergy cp3 and injectors blah blah
Reply With Quote
  #45  
Old 05-22-2016, 06:18 PM
mackthehack's Avatar
mackthehack mackthehack is offline
DUH...
 
Join Date: Apr 2007
Posts: 825
Default

Thanks dudes! I think my box is taking a shit on me. I had it rebuilt and modified by psc for hydro assist over 60k miles ago. I need to get it rebuilt or try a redhead. Might try a redhead and send it to psc and have them modify it for my hydro assist. I'll check out agr as well.
__________________
sas'd lbz with stuff
74 k10 with stuff
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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 09:26 AM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
vB.Sponsors