How many miles on 67-72 rear diff before a rebuilt? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Pont406 · 10-13-2009, 12:32 AM

What is an average life span of 67-72 c10 rear diffs before a rebuilt? I took mine apart again and everything looks good, 96000 miles. I ordered strange axles and will replaced axle bearing this time around . Carrier was out 4000 miles ago for a gear change. All the bearing looked good so I reused them.

Longhorn Man · 10-13-2009, 02:06 AM

there's no telling how many got repaired "back in the day" but the ones that still work today and haven't sat around unused for 20 years are generally still good.

**truckdude239** · 10-13-2009, 07:06 AM

if it aint makin no noise i'd leave it be

**special-K** · 10-13-2009, 07:34 AM

They can last pretty much forever as long as the lube is good.This is one part preventive maintenance makes all the difference in the world on.

69GMCLonghorn · 10-13-2009, 10:42 AM

I've only had 3/4 and 1 tons, but those typically last forever... I know of one that has 400,000+ miles on it and doesn't so much as whine. And this thing gets LOADED like a Las Vegas prostitute on a regular basis... Oh, and the diff fluid hasn't been checked or changed since I sold this guy the truck about 17 years ago!!

10-13-2009, 12:32 AM	#1
Pont406 Registered User Join Date: Aug 2007 Location: West Hills, California Posts: 679	How many miles on 67-72 rear diff before a rebuilt? What is an average life span of 67-72 c10 rear diffs before a rebuilt? I took mine apart again and everything looks good, 96000 miles. I ordered strange axles and will replaced axle bearing this time around . Carrier was out 4000 miles ago for a gear change. All the bearing looked good so I reused them.

10-13-2009, 02:06 AM	#2
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: How many miles on 67-72 rear diff before a rebuilt? there's no telling how many got repaired "back in the day" but the ones that still work today and haven't sat around unused for 20 years are generally still good.

10-13-2009, 07:06 AM	#3
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,233	Re: How many miles on 67-72 rear diff before a rebuilt? if it aint makin no noise i'd leave it be __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube

10-13-2009, 07:34 AM	#4
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,859	Re: How many miles on 67-72 rear diff before a rebuilt? They can last pretty much forever as long as the lube is good.This is one part preventive maintenance makes all the difference in the world on. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

10-13-2009, 10:42 AM	#5
69GMCLonghorn Registered User Join Date: Dec 2006 Location: Porter Ranch, CA Posts: 978	Re: How many miles on 67-72 rear diff before a rebuilt? I've only had 3/4 and 1 tons, but those typically last forever... I know of one that has 400,000+ miles on it and doesn't so much as whine. And this thing gets LOADED like a Las Vegas prostitute on a regular basis... Oh, and the diff fluid hasn't been checked or changed since I sold this guy the truck about 17 years ago!!



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.