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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: loudnlow87 on December 14, 2007, 10:35:22 am

Title: blew up the rear...
Post by: loudnlow87 on December 14, 2007, 10:35:22 am
had to get towed home last night after destroying 2 spider gears, breaking a pinion tooth, chipping a pinion tooth, and massively gouging the spider carrier housing.

im probably going to find a used axle from a salvage yard, leery about rebuilding with this housing because of the stress it probably has. have to get this back on the road ASAP its all i got.

while im going through all this work, might as well make it better if i can. will a 12 bolt swap right in?
Title: Re: blew up the rear...
Post by: Captkaos on December 14, 2007, 12:58:18 pm
12bolt will swap in, but you aren't gaining anything other than a bigger diameter ring gear, the pinion shaft is smaller than a 10bolt.
Title: Re: blew up the rear...
Post by: loudnlow87 on December 14, 2007, 01:08:50 pm
ok thanks. just got off the phone with the salvage yard, they have them in stock, possibly one with factory posi, gonna pick one up tomorrow morning...about $250, + losing a day's work.
Title: Re: blew up the rear...
Post by: 1976Scottsdale on December 14, 2007, 03:12:51 pm
Also gonna need a different rear u-joint since the yokes are different.  Someone told me that the 12 bolt uses a 1310 u-joint and the 10 bolt uses a 1350 u-joint?  Not sure about that part but I know for a fact that the yokes are not the same in terms of u-joint size from when we swapped 1- bolts into my dad's 79 K-10.
Title: Re: blew up the rear...
Post by: loudnlow87 on December 16, 2007, 09:28:53 am
(http://i65.photobucket.com/albums/h212/scrapinasphalt/DSC00335.jpg)
(http://i65.photobucket.com/albums/h212/scrapinasphalt/DSC00337.jpg)
(http://i65.photobucket.com/albums/h212/scrapinasphalt/DSC00338.jpg)
Title: Re: blew up the rear...
Post by: Fordeatinz71 on December 16, 2007, 12:55:54 pm
one word...OUCH!
Title: Re: blew up the rear...
Post by: 85MudMonster on December 16, 2007, 01:22:26 pm
wow!!  :o