Author Topic: 1980 K20 Replacement Rear Hub  (Read 3662 times)

Offline srozell

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1980 K20 Replacement Rear Hub
« on: February 23, 2015, 11:26:54 pm »
I think I'm using the right terminology, but if what I say doesn't make sense, maybe I'm not.

In pulling the drums off my truck, I discovered that some of the axle flange bolts were quite loose, and further inspection revealed that some of the threaded  holes on the hub are stripped.

I haven't been able to find replacement hubs online, but perhaps I'm calling them the wrong thing.

Is anyone able to help me with this?
1980 K20 "Camper Special"
1969 K20 Step Side
http://myuglytruck.wordpress.com/

Offline Jason S

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Re: 1980 K20 Replacement Rear Hub
« Reply #1 on: February 24, 2015, 01:40:30 pm »
If the threads aren't completely destroyed, then you may be able to chase the threads with a tap to straighten them.  A helicoil kit may also be an option too. 
« Last Edit: February 24, 2015, 01:42:16 pm by Jason S »
1973 GMC K2500, Super Custom, Camper Special, 350, TH350, NP203, 4.10's
1974 Chevrolet K10, Custom Deluxe, 350, SM465, NP203, 3.73's

"1) Peace through strength; 2) Trust but verify; 3) Beware of evil in the modern world"

Offline srozell

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Re: 1980 K20 Replacement Rear Hub
« Reply #2 on: February 24, 2015, 03:04:16 pm »
Some of the holes look like they've been honed they are so smooth. The previous owner literally used caulking to make the bolts stay in.

Using helicoils would be my last resort.
1980 K20 "Camper Special"
1969 K20 Step Side
http://myuglytruck.wordpress.com/

Offline Engineer

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Re: 1980 K20 Replacement Rear Hub
« Reply #3 on: February 24, 2015, 05:42:11 pm »
14-bolt full float rear axles with the inboard mounted brake drums are a dime a dozen.

Look around. Should be able to find one at a swap meet, classified ads, junk yard, or the local mud truckers.
2002 Chevy 2500HD 4x4 8.1/ZF6sp RC/LB
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1997 Chevy Blazer 4x4
1994 Chevy K-2500 4x4 C6P 5.7/4L80E
1979 Chevy K-30 4x4 4sp 4.10
1977 Chevy K-30 4x4 4sp 4.10 454

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Offline srozell

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Re: 1980 K20 Replacement Rear Hub
« Reply #4 on: February 24, 2015, 07:49:17 pm »
I'll keep my ear to the ground. There are no scrappers around here that carry these trucks, in the meantime I'll helicoil the hubs that are on there.
1980 K20 "Camper Special"
1969 K20 Step Side
http://myuglytruck.wordpress.com/

Offline Jason S

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Re: 1980 K20 Replacement Rear Hub
« Reply #5 on: February 24, 2015, 09:19:56 pm »
The helicoil repair should be more than adequate.
Besides salvage yards, another option is keep an eye on Craigslist (or equivalent) for pickup bed trailers as well as axles... Then there's always eBay.
1973 GMC K2500, Super Custom, Camper Special, 350, TH350, NP203, 4.10's
1974 Chevrolet K10, Custom Deluxe, 350, SM465, NP203, 3.73's

"1) Peace through strength; 2) Trust but verify; 3) Beware of evil in the modern world"

Offline MossyOakSilverado

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Re: 1980 K20 Replacement Rear Hub
« Reply #6 on: May 25, 2015, 01:50:02 pm »
I know this is an old topic but the helicoils are common on hubs. I do a couple a month on over the road trucks and trailers. If you really want to replace the hub with a new one, take the hub or axle ID to a fleet supplier like Fleetpride and they can order them.