1971 K10 Stepside - Getting a Roller Roadworthy - Page 9 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**'68OrangeSunshine** · Yesterday, 07:11 PM

Pat, Was your '71 K/10 Stepside originally an Air Force truck? The darker metallic blue suggests that to me. But internet colors get distorted.

**pjmoreland** · Yesterday, 07:14 PM

Quote:

Originally Posted by '68OrangeSunshine

Pat, Was your '71 K/10 Stepside originally an Air Force truck? The darker metallic blue suggests that to me. But internet colors get distorted.

Unfortunately I know next to nothing about the history of this truck. The original paint was dark olive, and now it's covered in gray primer. One bed fender and the interior are still green.

**'68OrangeSunshine** · Yesterday, 07:24 PM

Quote:

Originally Posted by pjmoreland

Unfortunately I know next to nothing about the history of this truck. The original paint was dark olive, and now it's covered in gray primer. One bed fender and the interior are still green.

Quick reply! I was about to edit, since I backtracked and pulled up the SPID. While the OEM color was Olive, the SPID looks commercial, as Gov't trucks had a government property placque riveted inside the Glove Box and often no SPID.
And the Air Force never ''borrows'' trucks from the Army.
[Only the Marine Corps has a 'tradition' of assimilating vehicles from other branches -- usually when they ain't looking.]

**pjmoreland** · Today, 12:51 AM

Quote:

Originally Posted by '68OrangeSunshine

Quick reply! I was about to edit, since I backtracked and pulled up the SPID. Whie the OEM color was Olive, the SPID looks commercial, as Gov't trucks had a government property placque rivited inside the Glove Box and often no SPID.
And the Air Force never ''borrows'' trucks from the Army.
[Only the Marine Corps has a 'tradition' of assimilating vehicles from other branches -- usually when they ain't looking.]

Interesting stuff. I've seen a few retired military 67-72 trucks for sale on eBay. Mime is definitely commercial.

**pjmoreland** · Today, 01:05 AM

I disassembled the front hubs today with the intention of replacing the bearings and seals. Unfortunately, one of the hubs needs to be replaced because at some point a bearing spun in it and wore a groove. I have a lead on a replacement.

I did go ahead with installation of the axle shafts, spindles and dust shields. I also installed new axle vent hoses and vent caps. Filled the differentials with fluid. Also worked on a large crease in the passenger side front fender and adjusted the hood so that it latches now.

**pjmoreland** · Today, 01:18 AM

Here's the hub that got damaged by a spun bearing.

**pjmoreland** · Today, 01:23 AM

More photos

**CUSTOM/10** · Today, 07:51 AM

Hey Patrick, there are 2 different style hubs & spindles . Large bearing and small bearing. I believe yours look to be small bearing. You can use either but they have to be used as pairs, ( spindle & hub ) both large or both small. The outer bearings are the same, the inner bearing ( the one you spun ) is the difference. So keep that in mind when your sourcing parts.
If you run into trouble l have some small bearing hubs & spindles.
Gary

**pjmoreland** · Today, 11:45 AM

Quote:

Originally Posted by CUSTOM/10

Hey Patrick, there are 2 different style hubs & spindles . Large bearing and small bearing. I believe yours look to be small bearing. You can use either but they have to be used as pairs, ( spindle & hub ) both large or both small. The outer bearings are the same, the inner bearing ( the one you spun ) is the difference. So keep that in mind when your sourcing parts.
If you run into trouble l have some small bearing hubs & spindles.
Gary

Thank you for the heads up!

**pjmoreland** · Today, 01:08 PM

The spindle measures 1.779" at the inner bearing location.

The inner bearing O.D. is 3.063".

**1970cstblazer** · Today, 01:29 PM

Here is info right from the parts book:

Note: 1971 & 1972 would be the same as 1973-77 1st design.

**pjmoreland** · Today, 01:33 PM

Quote:

Originally Posted by 1970cstblazer

Here is info right from the parts book:

Note: 1971 & 1972 would be the same as 1973-77 1st design.

Thank you. So a 2" spindle diameter would indicate 2nd design

**CUSTOM/10** · Today, 02:35 PM

Go by the measurements, you never know what may have been swapped in there by a previous owner. I have also seen left over prior year parts use on the next year.

**CUSTOM/10** · Today, 03:16 PM

1970cstblazer is correct on the bearing years, it was the axle shaft size that changed in 72.

Yesterday, 07:11 PM	#201
'68OrangeSunshine Senior Member Join Date: Feb 2002 Location: Tucson, AZ USA Posts: 7,456	Re: 1971 K10 Stepside - Getting a Roller Roadworthy Pat, Was your '71 K/10 Stepside originally an Air Force truck? The darker metallic blue suggests that to me. But internet colors get distorted. __________________ Every 25 years I like to rebuild that 292, whether it needs it or not.

Today, 01:05 AM	#205
pjmoreland Senior Member Join Date: Jan 2005 Location: CA Posts: 5,832	Re: 1971 K10 Stepside - Getting a Roller Roadworthy I disassembled the front hubs today with the intention of replacing the bearings and seals. Unfortunately, one of the hubs needs to be replaced because at some point a bearing spun in it and wore a groove. I have a lead on a replacement. I did go ahead with installation of the axle shafts, spindles and dust shields. I also installed new axle vent hoses and vent caps. Filled the differentials with fluid. Also worked on a large crease in the passenger side front fender and adjusted the hood so that it latches now. Attached Images

Today, 01:18 AM	#206
pjmoreland Senior Member Join Date: Jan 2005 Location: CA Posts: 5,832	Re: 1971 K10 Stepside - Getting a Roller Roadworthy Here's the hub that got damaged by a spun bearing. Attached Images

Today, 01:23 AM	#207
pjmoreland Senior Member Join Date: Jan 2005 Location: CA Posts: 5,832	Re: 1971 K10 Stepside - Getting a Roller Roadworthy More photos Attached Images

Today, 07:51 AM	#208
CUSTOM/10 Senior Member Join Date: May 2003 Location: Sandown, NH Posts: 2,844	Re: 1971 K10 Stepside - Getting a Roller Roadworthy Hey Patrick, there are 2 different style hubs & spindles . Large bearing and small bearing. I believe yours look to be small bearing. You can use either but they have to be used as pairs, ( spindle & hub ) both large or both small. The outer bearings are the same, the inner bearing ( the one you spun ) is the difference. So keep that in mind when your sourcing parts. If you run into trouble l have some small bearing hubs & spindles. Gary __________________ Gary 72 SWB 4x4 My 72 SWB Build http://67-72chevytrucks.com/vboard/s...d.php?t=259859 Last edited by CUSTOM/10; Today at 10:35 AM.

Today, 01:08 PM	#210
pjmoreland Senior Member Join Date: Jan 2005 Location: CA Posts: 5,832	Re: 1971 K10 Stepside - Getting a Roller Roadworthy The spindle measures 1.779" at the inner bearing location. The inner bearing O.D. is 3.063". Attached Images

Today, 01:29 PM	#211
1970cstblazer All stock and staying that way Join Date: Jul 2003 Location: Elkland, PA Posts: 1,716	Re: 1971 K10 Stepside - Getting a Roller Roadworthy Here is info right from the parts book: Note: 1971 & 1972 would be the same as 1973-77 1st design. Attached Images __________________ 1970 K/5 Blazer CST 4WD, Medium Bronze, 93k ACT. miles, 350, 4 speed, rear positraction, 16.5" x 8.25" HD wheel option, tilt, tach, vacuum, AM/FM, manual throttle...Dad ordered and purchased new 4/70. Currently frame off restoration finally getting close to completion.. 1972 Cheyenne Super 20 2WD, DK Blue/White, 90K ACT. miles, 402, TH400, 4.10 open, tilt, tach, vacuum, A/C, AM/FM, manual throttle.. A mostly original paint never rusted Texas survivor... 2017 Sierra 1500 SLT 4WD, Black, 45k miles, 5.3, 6L80E, 3.42 LS, 20" polished wheels, everything but moonroof and 6.2... 2019 Canyon SLT 4WD, White, 62k miles, 3.6, 8L45, 3.23 LS, 18" wheels

Today, 02:35 PM	#213
CUSTOM/10 Senior Member Join Date: May 2003 Location: Sandown, NH Posts: 2,844	Re: 1971 K10 Stepside - Getting a Roller Roadworthy Go by the measurements, you never know what may have been swapped in there by a previous owner. I have also seen left over prior year parts use on the next year. __________________ Gary 72 SWB 4x4 My 72 SWB Build http://67-72chevytrucks.com/vboard/s...d.php?t=259859

Today, 03:16 PM	#214
CUSTOM/10 Senior Member Join Date: May 2003 Location: Sandown, NH Posts: 2,844	Re: 1971 K10 Stepside - Getting a Roller Roadworthy 1970cstblazer is correct on the bearing years, it was the axle shaft size that changed in 72. __________________ Gary 72 SWB 4x4 My 72 SWB Build http://67-72chevytrucks.com/vboard/s...d.php?t=259859 Last edited by CUSTOM/10; Today at 03:38 PM.



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