60-66 lift springs

[pheengurs]

thanks 62shortstep!

so you mean the later model spring setups have larger shaft diameter bolts, and non greasable???


why manufacturers wouldn't just build a bushing to fit our trucks rather than not sell their product at all, baffles me...

or simply sell an undrilled bushing and let the user drill out the size needed...

[62 short step]

Originally Posted by pheengurs

thanks 62shortstep!

so you mean the later model spring setups have larger shaft diameter bolts, and non greasable???


why manufacturers wouldn't just build a bushing to fit our trucks rather than not sell their product at all, baffles me...

or simply sell an undrilled bushing and let the user drill out the size needed...

Actually the later model spring bolts are smaller and non greaseable.

I called one of the lift companies in 2006 and they told me not enough interest for the older stuff.

Its really not that hard to do, here is a link to my build.
http://67-72chevytrucks.com/vboard/s...d.php?t=333036

[raylube]

62 short I saw your thread about the rear and front springs. Just wondering what you did as far as the front spring bushing. Square body bushings are around 3.5 inches and the 60 66 hangers are 2.5 inches.did you use a poly bushing and trim the sides down? Also what did you do to convert the front spring shackles and rear hangers? Thanks.

[pheengurs]

[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...

[raylube]

The spring bushing on those spring from summit are 3 inches wide with a 5/8 bolt hole.the spring hanger bolt when tight will clamp the hanger to the rubber or poly sleeve bushing. On the stock set up it uses a center pin with bronze bushing that floats between the hanger. The eyes of the stock springs are smaller so the 1.5 inch bushings from the aftermarket or stock 67 and newer springs cannot be used.

[pheengurs]

Originally Posted by raylube

The spring bushing on those spring from summit are 3 inches wide with a 5/8 bolt hole.the spring hanger bolt when tight will clamp the hanger to the rubber or poly sleeve bushing. On the stock set up it uses a center pin with bronze bushing that floats between the hanger. The eyes of the stock springs are smaller so the 1.5 inch bushings from the aftermarket or stock 67 and newer springs cannot be used.

geez... those two links from summit are supposed to be 2.5" wide springs...

I submitted a product question asking what the width of the spring perch area would be...

but I think perhaps I understand what you're saying based on the pic provided in this post here by MFC66: http://67-72chevytrucks.com/vboard/s...d.php?t=790205

basically our stock mount, because of it's cast metal and center pin design, cannot be modified to accept a bolt on spring?

[raylube]

The spring from summit is 2.5 inches wide it is the bushing only on those that is 3 inches wide with a 1.5 diameter bushing. Go to the post you linked and search the members that I added that have done spring swaps.

[pheengurs]

Originally Posted by raylube

The spring from summit is 2.5 inches wide it is the bushing only on those that is 3 inches wide with a 1.5 diameter bushing. Go to the post you linked and search the members that I added that have done spring swaps.

thanks Raylube, I'll check those posts out... but basically you're telling me that I need to replace the spring perches, correct?