Axle widths for 1/2 and 3/4 trucks - drum and disk ?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**Green Machine** · 06-04-2006, 12:14 AM

Does anyone have the axle widths, the measurement between the wheel mounting surface on the drum/disk for various years and 1/2 and 3/4 ton and maybe 4x4 if different?. I know the 67-69 1/2 rear was narrow, 70 could be either, 71-72 were wider. Seems that disk then went wider in front too.

Don't have any info on the 3/4 or 4x4 in any year.

Seems to me this info would be of great help in trying to decide wheel width and especailly offset on these trucks. What offset fits one truck may need or could be altered to fit better on a different truck. Also front / rear offset could be altered to fit what GM put in there.

Two different trucks for example could be a 67 with a disk brake conversion, wide front - skinny rear, or a late 70 with the wide rear and narrow front drum setup.

Thanks

70GMCer · 06-04-2006, 06:56 AM

I believe the width of the mid year 70 and 71-72 1/2 Ton rear is 1 1/2" wider. I don't have the exact length measurements at the moment.

rauto13 · 06-05-2006, 07:04 PM

I am looking for the different lengths for a 67 vs 72 2WD rear end also

TTT

06-04-2006, 12:14 AM	#1
Green Machine Senior Member Join Date: Jul 2004 Location: Estherville, Iowa Posts: 3,371	Axle widths for 1/2 and 3/4 trucks - drum and disk ?? Does anyone have the axle widths, the measurement between the wheel mounting surface on the drum/disk for various years and 1/2 and 3/4 ton and maybe 4x4 if different?. I know the 67-69 1/2 rear was narrow, 70 could be either, 71-72 were wider. Seems that disk then went wider in front too. Don't have any info on the 3/4 or 4x4 in any year. Seems to me this info would be of great help in trying to decide wheel width and especailly offset on these trucks. What offset fits one truck may need or could be altered to fit better on a different truck. Also front / rear offset could be altered to fit what GM put in there. Two different trucks for example could be a 67 with a disk brake conversion, wide front - skinny rear, or a late 70 with the wide rear and narrow front drum setup. Thanks __________________ 1968 C10 307 3spd Long Fleet ------ http://67-72chevytrucks.com/vboard/s...d.php?t=201103 1970 C10 305 Super T10 Long Fleet --- http://67-72chevytrucks.com/vboard/s...d.php?t=202285 1971 C20 383 TH350 Dana Posi ----- http://67-72chevytrucks.com/vboard/s...d.php?t=206894 2001 GMC Sierra 1500 C3 6.0 Last edited by Green Machine; 06-04-2006 at 12:20 AM.

06-04-2006, 06:56 AM	#2
70GMCer Senior Member Join Date: Apr 2005 Location: Joppa, Maryland Posts: 4,408	Re: Axle widths for 1/2 and 3/4 trucks - drum and disk ?? I believe the width of the mid year 70 and 71-72 1/2 Ton rear is 1 1/2" wider. I don't have the exact length measurements at the moment. __________________ 1997 GMC Sierra Ext 1965 Mustang

06-05-2006, 07:04 PM	#3
rauto13 saving one more Join Date: Sep 2005 Location: Pryor Creek, Oklahoma Posts: 3,066	Re: Axle widths for 1/2 and 3/4 trucks - drum and disk ?? I am looking for the different lengths for a 67 vs 72 2WD rear end also TTT __________________ 72 Chevy longbed - now for parts 69 Chevy short fleet - needing some love 70 RS Camaro - needing more love driver - 96 GMC X-cab



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