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- - rear axle (https://67-72chevytrucks.com/vboard/showthread.php?t=281784)

pulltilbroke

03-06-2008 02:44 AM

rear axle

what rear axle would my 60 4x4 1/2 ton have in it

Blazer1970

03-06-2008 04:45 PM

Re: rear axle

GM corporate HO33 I think is the model. Smaller version of the HO52/HO72 corporate axles that were still used until '72.

pulltilbroke

03-06-2008 04:51 PM

Re: rear axle

whats the difference between the HO52 and the HO72 these were the big Eaton 12 1/4 units werent they

special-K

03-06-2008 06:38 PM

Re: rear axle

Pretty much the outer stuff:brakes and hubs.The HO72 will have a pinion side thrust adjustment,too.Not sure if it`s all or whether some HO52s did,too.If memory serves,all HO72s did and some HO52s did.

1969 GMC

03-07-2008 03:45 AM

Re: rear axle

Quote:

Originally Posted by pulltilbroke (Post 2612210)

whats the difference between the HO52 and the HO72 these were the big Eaton 12 1/4 units werent they

the 12.25" ring gear is the H110, optional on C/30's only. They had 10 lugs in the rear, 5 up front with this axle.

pulltilbroke

03-07-2008 03:49 AM

Re: rear axle

Whats the ring gear size on the HO52/72
this is the diff I got in my 67

1969 GMC

03-07-2008 07:58 AM

Re: rear axle

Its roughly 10-1/8" when I hit mine with the tape measure

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