WTB: 1/2 ton rear end for 94 chev 4WD-Washington - The 1947 - Present Chevrolet & GMC Truck Message Board Network

1970blazin · 11-19-2003, 12:43 PM

Just had my rear end go out in my 94 chev z-71. Need gear ratio to be 3.73 Any input would be greatly appreciated. Just bought the truck 4 months ago so I am bummed! Thanks!

Dan72cst · 11-20-2003, 04:50 PM

Apparently this is a very common problem. Mine went out in the '93 a couple years ago. The yards around here wanted $1000 for used and I think $1295 for new, I about choked. After himming and hawing for a while, I bought all the parts and rebuilt it myself. It was my first time, but that was 50,000 miles ago so it worked. I spent about $600 on parts as I needed to replace the carrier too (spun bearing). I think I got a dial indicator out of that $600. Call Randy's ring and pinion. Good luck!

I'm trying to remember.....I had to use a dental pick to unscrew the broken bolt that holds the spider gear shaft in. And needed a BIG and I mean BIG impact gun to tighten the crush sleeve for the pinion gear. Dan

Also, I just remembered that mine might have been more expensive at the yards because its a suburban and they all have the mounts for the rear sway bar.

LeRoy · 11-21-2003, 03:41 AM

What's the spacing from center bolt to center bolt. Curious if one of my 12 bolts will work. Those 10 bolts are notorious for this

1970blazin · 11-21-2003, 02:10 PM

I will check on that as my truck isn't here right now. I am new to this rear end diff thing, so I am not sure how that works. I just don't want to have to spend an arm and a leg, and I want to do it right. Thanks!

LeRoy · 11-21-2003, 11:33 PM

I personally wouldn't rebuild the 10 bolt depending on how bad it is. My 12 bolt came out of a 78 and I'm not sure if the springs were the same width on the frame. Not a biggy as they can be moved but you probably want the cheapest and easiest swap.

11-19-2003, 12:43 PM	#1
1970blazin Blazerless:-( Join Date: Jun 2003 Location: Olympia WA Posts: 1,612	WTB: 1/2 ton rear end for 94 chev 4WD-Washington Just had my rear end go out in my 94 chev z-71. Need gear ratio to be 3.73 Any input would be greatly appreciated. Just bought the truck 4 months ago so I am bummed! Thanks! __________________ 1970blazin 1970 CST Blazer-Orig. Dark Blue-SOLD Progress Pics of Blazer for sale Last edited by 1970blazin; 11-20-2003 at 05:03 PM.

11-20-2003, 04:50 PM	#2
Dan72cst Registered User Join Date: Feb 2001 Location: Lake Stevens,WA 98258 North of Seattle Posts: 833	Apparently this is a very common problem. Mine went out in the '93 a couple years ago. The yards around here wanted $1000 for used and I think $1295 for new, I about choked. After himming and hawing for a while, I bought all the parts and rebuilt it myself. It was my first time, but that was 50,000 miles ago so it worked. I spent about $600 on parts as I needed to replace the carrier too (spun bearing). I think I got a dial indicator out of that $600. Call Randy's ring and pinion. Good luck! I'm trying to remember.....I had to use a dental pick to unscrew the broken bolt that holds the spider gear shaft in. And needed a BIG and I mean BIG impact gun to tighten the crush sleeve for the pinion gear. Dan Also, I just remembered that mine might have been more expensive at the yards because its a suburban and they all have the mounts for the rear sway bar. __________________ Marysville, WA (Dan72cst@hotmail.com) 72 4wd Blazer CST 350/350 72 4wd Chevy LWB 350/350 68 2wd Chevy LWB 327/400 Last edited by Dan72cst; 11-20-2003 at 04:57 PM.

11-21-2003, 03:41 AM	#3
LeRoy Registered truck nut Join Date: Dec 1999 Location: Mt. Vernon, Washington, USA Posts: 1,584	What's the spacing from center bolt to center bolt. Curious if one of my 12 bolts will work. Those 10 bolts are notorious for this __________________ MOUNT VERNON, WASH. STATE Need a part? Just PM me

11-21-2003, 02:10 PM	#4
1970blazin Blazerless:-( Join Date: Jun 2003 Location: Olympia WA Posts: 1,612	I will check on that as my truck isn't here right now. I am new to this rear end diff thing, so I am not sure how that works. I just don't want to have to spend an arm and a leg, and I want to do it right. Thanks! __________________ 1970blazin 1970 CST Blazer-Orig. Dark Blue-SOLD Progress Pics of Blazer for sale

11-21-2003, 11:33 PM	#5
LeRoy Registered truck nut Join Date: Dec 1999 Location: Mt. Vernon, Washington, USA Posts: 1,584	I personally wouldn't rebuild the 10 bolt depending on how bad it is. My 12 bolt came out of a 78 and I'm not sure if the springs were the same width on the frame. Not a biggy as they can be moved but you probably want the cheapest and easiest swap. __________________ MOUNT VERNON, WASH. STATE Need a part? Just PM me



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