12 bolt problems - The 1947 - Present Chevrolet & GMC Truck Message Board Network

LS1 K-5 Blazer · 11-11-2002, 10:44 PM

Alright, can't find a rearend for my 71. So I was pulling this one out to take to the local 4x4 shop to have them do rebuild bearings and such. So I go to pull the axles and notice the head for the bolt to remove the pin that holds the axles is gone. WTF do I do now? So does any one have a good carrier laying around that they want to sell me?

Johns70 · 11-11-2002, 10:48 PM

OPEN DIFF OR IS IT A LOCKER?

LS1 K-5 Blazer · 11-11-2002, 10:50 PM

That means I can see the spider gears right? Basically limited slip?

mikep · 11-11-2002, 10:54 PM

What ratio are you looking for? 6 lug axles?

Johns70 · 11-11-2002, 10:54 PM

YEAH OPEN DIFF. IS YOU CAN SEE THE SPIDERS NO SPRINGS.

LIMITED SLIP HAS THE SRINGS IN THERE WITH THE SPIDERS.

LS1 K-5 Blazer · 11-11-2002, 11:02 PM

6 lugs, gotta count the teeth so I can figure out what gears it has. So since I can see the spiders with no springs what does that mean? I am truly rearend defficent. I actually found a 72 K-5 in Tacoma today, they wanted 325 for the whole rearend, kinda steep. I have seen 73s and up go for 150 to 175.

Johns70 · 11-11-2002, 11:09 PM

WELL IF YOU HAVE OPEN DIFF THEN YOU DON'T NEED TO TAKE THAT BOLT OUT THAT HOLD THE PIN IN.PUSH THE AXLE ALL THE WAY IN AND THE C-CLIP SHOULD FALL OUT YOU MAY HAVE TO POKE AROUND THE CLIP A LITTLE WITH A PRY BAR OR SCREW DRIVER TO CAOX IT OUT. THE GEAR RATIO IS STAMPED ON THE RING GEAR IT WILL BE TWO NUMBERS THEN TWO DOTS AND TWO NUMBERS AGAIN. THE FIRST ONE WILL BE THE PINION GEAR COUNT AND THE SECOND WILL BE THE RING GEAR COUNT,THEN YOU JUST HAVE TO DIVIDE.

LS1 K-5 Blazer · 11-11-2002, 11:20 PM

14..43. 3.07s does that sound right?

*Fast68Chevy* · 11-11-2002, 11:26 PM

you can punch the lock shaft out and as for getting whats left of the lockpin out by using an EZ out unless someone else knows a better trick, you wont be able to push in shaft in far enough ot remove C clip unless the lock shaft is removed, if it was able to be removed without removing lockshaft then we would have big problems..

good luck

Brad · 11-12-2002, 12:55 AM

Sent you a PM.

ps.- I just sold the drums though.

bigjimzlll · 11-12-2002, 01:09 AM

doesnt that work out to 3.25-1

1971LT1SWBPOSI373 · 11-12-2002, 02:29 AM

Drill it out and use a bolt extractor. You should be able to salvage the unit easily....

11-11-2002, 10:44 PM	#1
LS1 K-5 Blazer Registered User Join Date: Aug 2002 Location: Bremerton, Wa Posts: 102	12 bolt problems Alright, can't find a rearend for my 71. So I was pulling this one out to take to the local 4x4 shop to have them do rebuild bearings and such. So I go to pull the axles and notice the head for the bolt to remove the pin that holds the axles is gone. WTF do I do now? So does any one have a good carrier laying around that they want to sell me? __________________ Mike Friend 2004 Chevy Silverado 4x4 1971 K-5 Blazer

11-11-2002, 10:48 PM	#2
Johns70 Registered User Join Date: Dec 2001 Location: Spring Creek, nevada. U.S.A. Posts: 456	OPEN DIFF OR IS IT A LOCKER? __________________ 69 chevy short wide box project 70 GMC jimmy project

11-11-2002, 10:50 PM	#3
LS1 K-5 Blazer Registered User Join Date: Aug 2002 Location: Bremerton, Wa Posts: 102	That means I can see the spider gears right? Basically limited slip? __________________ Mike Friend 2004 Chevy Silverado 4x4 1971 K-5 Blazer

11-11-2002, 10:54 PM	#4
mikep Used to have a truck Join Date: May 2002 Location: port orchard WA Posts: 1,552	What ratio are you looking for? 6 lug axles? __________________ No truck :-(

11-11-2002, 10:54 PM	#5
Johns70 Registered User Join Date: Dec 2001 Location: Spring Creek, nevada. U.S.A. Posts: 456	YEAH OPEN DIFF. IS YOU CAN SEE THE SPIDERS NO SPRINGS. LIMITED SLIP HAS THE SRINGS IN THERE WITH THE SPIDERS. __________________ 69 chevy short wide box project 70 GMC jimmy project

11-11-2002, 11:02 PM	#6
LS1 K-5 Blazer Registered User Join Date: Aug 2002 Location: Bremerton, Wa Posts: 102	6 lugs, gotta count the teeth so I can figure out what gears it has. So since I can see the spiders with no springs what does that mean? I am truly rearend defficent. I actually found a 72 K-5 in Tacoma today, they wanted 325 for the whole rearend, kinda steep. I have seen 73s and up go for 150 to 175. __________________ Mike Friend 2004 Chevy Silverado 4x4 1971 K-5 Blazer

11-11-2002, 11:09 PM	#7
Johns70 Registered User Join Date: Dec 2001 Location: Spring Creek, nevada. U.S.A. Posts: 456	WELL IF YOU HAVE OPEN DIFF THEN YOU DON'T NEED TO TAKE THAT BOLT OUT THAT HOLD THE PIN IN.PUSH THE AXLE ALL THE WAY IN AND THE C-CLIP SHOULD FALL OUT YOU MAY HAVE TO POKE AROUND THE CLIP A LITTLE WITH A PRY BAR OR SCREW DRIVER TO CAOX IT OUT. THE GEAR RATIO IS STAMPED ON THE RING GEAR IT WILL BE TWO NUMBERS THEN TWO DOTS AND TWO NUMBERS AGAIN. THE FIRST ONE WILL BE THE PINION GEAR COUNT AND THE SECOND WILL BE THE RING GEAR COUNT,THEN YOU JUST HAVE TO DIVIDE. __________________ 69 chevy short wide box project 70 GMC jimmy project

11-11-2002, 11:20 PM	#8
LS1 K-5 Blazer Registered User Join Date: Aug 2002 Location: Bremerton, Wa Posts: 102	14..43. 3.07s does that sound right? __________________ Mike Friend 2004 Chevy Silverado 4x4 1971 K-5 Blazer

11-11-2002, 11:26 PM	#9
Fast68Chevy Account Suspended Join Date: May 2000 Location: IL Posts: 0	you can punch the lock shaft out and as for getting whats left of the lockpin out by using an EZ out unless someone else knows a better trick, you wont be able to push in shaft in far enough ot remove C clip unless the lock shaft is removed, if it was able to be removed without removing lockshaft then we would have big problems.. good luck Last edited by Fast68Chevy; 11-11-2002 at 11:28 PM.

11-12-2002, 12:55 AM	#10
Brad Out of the carpool lane. Join Date: Jan 2000 Location: Clark Co, WA Posts: 5,673	Sent you a PM. ps.- I just sold the drums though. __________________ 1968 C-10 SWB, 5.7 Vortec/700R4/3.73 posi, Torch Red 1968 Camaro, 250/Powerglide, all original (No, I'm not gonna drop a 350 in it!...Jeez!) 2000 Honda VFR in the faster yellow! 2008 Husqvarna TE-610 1967 C-10 SWB 'Six Appeal'-Gone but not forgotten...

11-12-2002, 01:09 AM	#11
bigjimzlll Senior Member Join Date: Dec 2001 Location: Redding,CA...USA Posts: 4,736	doesnt that work out to 3.25-1 __________________ It's called "drag racing" if they called it "tic..tic..WHAM!..BANG! F*&K!!!", they'd have to keep the magazines under the counter with the other men's publications click the clicky to join the site.... http://67-72chevytrucks.com/vboard/payments.php 67 lwb..first hotrod in 25 years..540 best ET is 9.45 @ 141.44 Anderson,CA

11-12-2002, 02:29 AM	#12
1971LT1SWBPOSI373 Registered User Join Date: Mar 2002 Location: Springfield, VA Posts: 460	Drill it out and use a bolt extractor. You should be able to salvage the unit easily.... __________________ 1971 Shortbed 350/350 w/ Posi-traction 3:73's 1996 Chevy Silverado TJ in Springfield, Virginia Likes old Chevy trucks Drinks Miller MGD



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