What lockers are these - The 1947 - Present Chevrolet & GMC Truck Message Board Network

*scottsdaleowner75* · 07-24-2010, 11:22 PM

I picked up a set of 4.10 geared front and rear axles for my K10. Both look awesome internally. Came off of military blazers that looked like they had no run time on them. Does anyone know what kind they are? They look like detroit lockers. Not sure though. Both look identical. Here are some pics

iroc12valve · 07-25-2010, 01:52 AM

A- it should be an eaton limited slip/posi or "eaton pack"
B- military gears are 4.56 not 4.10 however they could have been converted
C- the front should be open not posi, again could have been changed
since you have covers off anyway get the part numbers and run them online or post them here. you can get the p/n for the gear by rotating them until you see the scribed in numbers there will be a tooth count e.g. 41 - 10 and then a p/n (like 7 numbers or so) if the diff has been changed to posi or spool or something then as your spinning it you'll see some more stamped in numbers
Good luck and good purchase

mongoose · 07-25-2010, 02:12 AM

turn it carrier a bit and take another pic.

*scottsdaleowner75* · 07-25-2010, 02:42 AM

Both front and rear are exactly the same as far as the eaton in there. Also i confirmed the ratio's as 4.10's both front and rear. I sealed them up already. There was writing on them but i didnt take it down. I will when i swap out fluid after a bit of driving. Also the rear axle shafts look after market too. I think i lucked out for $600 installed. The front even had a raised steering arm already.

b454rat · 07-25-2010, 08:49 AM

Those are 10 bolts not the Dana 60/14ff, and they are not "factory" from the military. The military 10 bolts had 3.08s I think, and no type of posi/locker up front, and think a grenade lock out back.

*scottsdaleowner75* · 07-25-2010, 09:15 AM

Yeah the gentleman i got them from had a set of those too. 3.08's with the gov lock. He got them all from a military base in Barstow CA. He was told several blazers were purpose built as chase vehicles for some exercises they were doing there. Most of them never saw the action they were supposed to hence the condition these axles were in. He got them as trade for work he did as a civilian contractor when the military just left the blazers out there for years. Who knows could be true could be bull. Sounds consistent with how i remember them running things out there. In any event i lucked out.

*scottsdaleowner75* · 07-26-2010, 05:17 PM

Picked it up last night. WOW what a difference!! Not only is it not a dog but it feels like it can drive up a wall in 4 low!! Huge difference. Not that loud around corners either. Im really happy with the outcome. Thanks for the help guys

07-24-2010, 11:22 PM	#1
scottsdaleowner75 Account Suspended Join Date: Mar 2010 Location: So. Cal, Inland Empire Posts: 199	What lockers are these I picked up a set of 4.10 geared front and rear axles for my K10. Both look awesome internally. Came off of military blazers that looked like they had no run time on them. Does anyone know what kind they are? They look like detroit lockers. Not sure though. Both look identical. Here are some pics Last edited by scottsdaleowner75; 07-24-2010 at 11:23 PM.

07-25-2010, 01:52 AM	#2
iroc12valve Registered User Join Date: Jun 2010 Location: niagara, ontario Posts: 109	Re: What lockers are these A- it should be an eaton limited slip/posi or "eaton pack" B- military gears are 4.56 not 4.10 however they could have been converted C- the front should be open not posi, again could have been changed since you have covers off anyway get the part numbers and run them online or post them here. you can get the p/n for the gear by rotating them until you see the scribed in numbers there will be a tooth count e.g. 41 - 10 and then a p/n (like 7 numbers or so) if the diff has been changed to posi or spool or something then as your spinning it you'll see some more stamped in numbers Good luck and good purchase __________________ 1991 V3500 350TBI/4l80/205 D60/14bff - Crew long 1987 IrocZ-28 525 horse/567 Lb Tq 383 1976 K30 on 39.5s One wheel drive thanks to a np203 and some K5's lol

07-25-2010, 02:12 AM	#3
mongoose Registered User Join Date: Feb 2009 Location: slurrey, bc. Posts: 1,134	Re: What lockers are these turn it carrier a bit and take another pic. __________________ -'73 c/10 - Low with Go - will be complete... probably never. -'90 2wd Blazer - well... soon enough anyways. -'84 SWB - the daily gas guzzler.

07-25-2010, 02:42 AM	#4
scottsdaleowner75 Account Suspended Join Date: Mar 2010 Location: So. Cal, Inland Empire Posts: 199	Re: What lockers are these Both front and rear are exactly the same as far as the eaton in there. Also i confirmed the ratio's as 4.10's both front and rear. I sealed them up already. There was writing on them but i didnt take it down. I will when i swap out fluid after a bit of driving. Also the rear axle shafts look after market too. I think i lucked out for $600 installed. The front even had a raised steering arm already.

07-25-2010, 08:49 AM	#5
b454rat Senior Member Join Date: May 2004 Location: Binghamton, NY Posts: 3,469	Re: What lockers are these Those are 10 bolts not the Dana 60/14ff, and they are not "factory" from the military. The military 10 bolts had 3.08s I think, and no type of posi/locker up front, and think a grenade lock out back. __________________ 2000 GMC CCSB 454/4L80 6” lift SAS 1999 Chevy CCSB 454/NV4500 4” SAS 1999 GMC Yukon 350/4L60 6" SAS

07-25-2010, 09:15 AM	#6
scottsdaleowner75 Account Suspended Join Date: Mar 2010 Location: So. Cal, Inland Empire Posts: 199	Re: What lockers are these Yeah the gentleman i got them from had a set of those too. 3.08's with the gov lock. He got them all from a military base in Barstow CA. He was told several blazers were purpose built as chase vehicles for some exercises they were doing there. Most of them never saw the action they were supposed to hence the condition these axles were in. He got them as trade for work he did as a civilian contractor when the military just left the blazers out there for years. Who knows could be true could be bull. Sounds consistent with how i remember them running things out there. In any event i lucked out.

07-26-2010, 05:17 PM	#7
scottsdaleowner75 Account Suspended Join Date: Mar 2010 Location: So. Cal, Inland Empire Posts: 199	Re: What lockers are these Picked it up last night. WOW what a difference!! Not only is it not a dog but it feels like it can drive up a wall in 4 low!! Huge difference. Not that loud around corners either. Im really happy with the outcome. Thanks for the help guys



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.