The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 60-66 lift springs

pheengurs · 07-13-2019, 09:24 AM

[QUOTE=62 short step;8557258]Actually the later model spring bolts are smaller and non greaseable.

so the difference between a 60-66 factory 52" x 2.5" rear leaf spring and a 67-73 (which use the same length and width springs?) is the bolt size ???

why do you need to change spring hangars, if it's just a bolt size difference?

I feel like this should be a no brainer and make sense but it doesn't.

I'm just trying to get a mental picture of why a guy can't bolt

https://www.summitracing.com/int/par...9670/overview/
or
https://www.summitracing.com/int/par...3311/overview/

on to his 1964 chev k10 4x4 with it's factory spring hangars in the rear...

07-13-2019, 09:24 AM	#13
pheengurs Registered User Join Date: Jul 2006 Location: Calgary, Alberta, Canada Posts: 134	Re: 60-66 lift springs [QUOTE=62 short step;8557258]Actually the later model spring bolts are smaller and non greaseable. so the difference between a 60-66 factory 52" x 2.5" rear leaf spring and a 67-73 (which use the same length and width springs?) is the bolt size ??? why do you need to change spring hangars, if it's just a bolt size difference? I feel like this should be a no brainer and make sense but it doesn't. I'm just trying to get a mental picture of why a guy can't bolt https://www.summitracing.com/int/par...9670/overview/ or https://www.summitracing.com/int/par...3311/overview/ on to his 1964 chev k10 4x4 with it's factory spring hangars in the rear... __________________ 1964 K10 shortbox Stepside 383 sbc stroker under vortec heads sm420 trans / t221 tcase / corp 10 front axle / corp 12 rear axle / 3.73 gears rolling on 33x12x15 tires on 6 lug rims.