I need a rear axle hub measurement!! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**Hart_Rod** · 02-05-2010, 01:13 PM

I need the following measurement for the rear axle hub (see picture). The measurement should be at the wheel mounting surface. Mine measures 3.09" (71/72). I need these for 71/72 hubs and 73-87 hubs. Please post both if you have them. I need as many responses to this as I can get to determine the variances, so please don't stop replying.

Thanks in advance.

R/

SCOTI · 02-05-2010, 03:10 PM

Rob, I'll get you some numbers for the 71-72 by this afternoon & can cross check against my 74 once I get home this evening. I'll post up the info asap.

SCOTI · 02-05-2010, 10:08 PM

I got 3.06" on mine (both). The 74's hubs are OE/stock; the hubs on the 68 housing are Moser axles if that makes a difference to you. I was going to measure the 71/72 rear end but remembered it also has Moser axles.

Hope this helps.... Let me know if you need anything else.

**Hart_Rod** · 02-05-2010, 11:53 PM

Quote:

Originally Posted by SCOTI

I got 3.06" on mine (both). The 74's hubs are OE/stock; the hubs on the 68 housing are Moser axles if that makes a difference to you. I was going to measure the 71/72 rear end but remembered it also has Moser axles.

Hope this helps.... Let me know if you need anything else.

Thanks Scotti. Now all I need a measurement from a stock 71/72 axle.

dfwright · 02-06-2010, 02:28 PM

I have a stock '72. I measured 3-1/16" diameter

**Hart_Rod** · 02-07-2010, 03:03 PM

Quote:

Originally Posted by dfwright

I have a stock '72. I measured 3-1/16" diameter

Thanks! Anyone else?

gcburdic · 02-07-2010, 06:01 PM

Hey Rob....I have a 71 stock rear end....3 1/16" here too....

**Hart_Rod** · 02-07-2010, 07:02 PM

Quote:

Originally Posted by gcburdic

Hey Rob....I have a 71 stock rear end....3 1/16" here too....

Are you measuring at the base or at the outer most part?

dfwright · 02-07-2010, 07:52 PM

I measured at the outermost part. There's a little bump in diameter right at the base. Did you want the thicker measurement?

**Hart_Rod** · 02-07-2010, 07:56 PM

Quote:

Originally Posted by dfwright

I measured at the outermost part. There's a little bump in diameter right at the base. Did you want the thicker measurement?

That's correct, sorry I wasn't clear. Thanks DFW.

dfwright · 02-07-2010, 08:32 PM

Ok, so I measure a total of 3-3/32" at the base

gcburdic · 02-08-2010, 09:46 AM

Oops...outer most part here too....I'll check it again tonight

**Hart_Rod** · 02-10-2010, 03:45 PM

Quote:

Originally Posted by gcburdic

Oops...outer most part here too....I'll check it again tonight

Geoff did you every get the measurement?

gcburdic · 02-10-2010, 11:15 PM

Crap...i didn't...excuse my ignorance, but what would be the best way to measure at the base??...Was thinking about wrapping a string around it then calculating it out using the circumference equation

...I know...I'm such a dorky engineer!!!

**Hart_Rod** · 02-11-2010, 12:13 AM

Quote:

Originally Posted by gcburdic

Crap...i didn't...excuse my ignorance, but what would be the best way to measure at the base??...Was thinking about wrapping a string around it then calculating it out using the circumference equation

...I know...I'm such a dorky engineer!!!

Whatever works! I figured you'd have a set of calipers in your pocket protector,

........

gcburdic · 02-11-2010, 10:08 AM

Quote:

Originally Posted by Hart_Rod

Whatever works! I figured you'd have a set of calipers in your pocket protector,

........

nope, can't have one of those in my pocket protector till I become "annoying" engi-NERD!!!...I'll get it tonight when I get home...sorry for the delay!

02-05-2010, 01:13 PM	#1
Hart_Rod ************* Join Date: Apr 2005 Location: Pensacola, FL Posts: 17,859	I need a rear axle hub measurement!! I need the following measurement for the rear axle hub (see picture). The measurement should be at the wheel mounting surface. Mine measures 3.09" (71/72). I need these for 71/72 hubs and 73-87 hubs. Please post both if you have them. I need as many responses to this as I can get to determine the variances, so please don't stop replying. Thanks in advance. R/ Attached Images __________________ Rob - https://www.instagram.com/hart_rod_c10 As Iron Sharpens Iron, So One Man Sharpens Another. Proverbs 27:17 FOR SALE: DBW pedal bracket - http://67-72chevytrucks.com/vboard/s...d.php?t=651123 FOR SALE: Hood Brackets http://67-72chevytrucks.com/vboard/s...d.php?t=679945 1987 Silverado SWB - 34.5K original miles http://67-72chevytrucks.com/vboard/s...d.php?t=801834 1969 SuperBurb - http://67-72chevytrucks.com/vboard/s...d.php?t=200387 1968 Farm truck - http://67-72chevytrucks.com/vboard/s...d.php?t=358692 1968 SWB - http://67-72chevytrucks.com/vboard/s...d.php?t=551258 1948 Chevy - http://67-72chevytrucks.com/vboard/s...=122164&page=3

02-05-2010, 03:10 PM	#2
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 22,031	Re: I need a rear axle hub measurement!! Rob, I'll get you some numbers for the 71-72 by this afternoon & can cross check against my 74 once I get home this evening. I'll post up the info asap. __________________ 67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... *Cubic inches is like Indiana Jones with a cheap pistol.*

02-05-2010, 10:08 PM	#3
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 22,031	Re: I need a rear axle hub measurement!! I got 3.06" on mine (both). The 74's hubs are OE/stock; the hubs on the 68 housing are Moser axles if that makes a difference to you. I was going to measure the 71/72 rear end but remembered it also has Moser axles. Hope this helps.... Let me know if you need anything else. __________________ 67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... *Cubic inches is like Indiana Jones with a cheap pistol.* Last edited by SCOTI; 02-05-2010 at 10:10 PM.

02-06-2010, 02:28 PM	#5
dfwright Registered User Join Date: Jan 2009 Location: San Antonio, Texas Posts: 1,374	Re: I need a rear axle hub measurement!! I have a stock '72. I measured 3-1/16" diameter __________________ 1972 C10 LWB, 350/350 Deconstruction began 5/2009, mostly completed restoration, 5/2017

02-07-2010, 06:01 PM	#7
gcburdic Restoration Virgin! Join Date: Jan 2008 Location: Huntersville, NC Posts: 8,298	Re: I need a rear axle hub measurement!! Hey Rob....I have a 71 stock rear end....3 1/16" here too.... __________________ Geoff with a G 1968 Chevy C10 SWB The Mistress 1972 Custom Deluxe C20 Suburban A Suburban Named Isabella 1966 Ford Mustang Mama's High School Graduation Present

02-07-2010, 07:52 PM	#9
dfwright Registered User Join Date: Jan 2009 Location: San Antonio, Texas Posts: 1,374	Re: I need a rear axle hub measurement!! I measured at the outermost part. There's a little bump in diameter right at the base. Did you want the thicker measurement? __________________ 1972 C10 LWB, 350/350 Deconstruction began 5/2009, mostly completed restoration, 5/2017

02-07-2010, 08:32 PM	#11
dfwright Registered User Join Date: Jan 2009 Location: San Antonio, Texas Posts: 1,374	Re: I need a rear axle hub measurement!! Ok, so I measure a total of 3-3/32" at the base __________________ 1972 C10 LWB, 350/350 Deconstruction began 5/2009, mostly completed restoration, 5/2017

02-08-2010, 09:46 AM	#12
gcburdic Restoration Virgin! Join Date: Jan 2008 Location: Huntersville, NC Posts: 8,298	Re: I need a rear axle hub measurement!! Oops...outer most part here too....I'll check it again tonight __________________ Geoff with a G 1968 Chevy C10 SWB The Mistress 1972 Custom Deluxe C20 Suburban A Suburban Named Isabella 1966 Ford Mustang Mama's High School Graduation Present

02-10-2010, 11:15 PM	#14
gcburdic Restoration Virgin! Join Date: Jan 2008 Location: Huntersville, NC Posts: 8,298	Re: I need a rear axle hub measurement!! Crap...i didn't...excuse my ignorance, but what would be the best way to measure at the base??...Was thinking about wrapping a string around it then calculating it out using the circumference equation...I know...I'm such a dorky engineer!!! __________________ Geoff with a G 1968 Chevy C10 SWB The Mistress 1972 Custom Deluxe C20 Suburban A Suburban Named Isabella 1966 Ford Mustang Mama's High School Graduation Present

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