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Old 07-08-2014, 09:30 AM   #55
lolife99
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Join Date: Nov 2002
Location: Mid-MO
Posts: 22,683
Re: CPP Drop Spindles: Conflicting Information

Quote:
Originally Posted by mtnbikerxt View Post
OK. So I bit the bullet and bought the setup I was describing. The part number I bought was 6370SWBK6OE. This is described as "1963-70 O.E.M., 6-lug, drop, kit ". The kit comes with 2.5" drop spindles in the new smooth casting (no stiffening ribs on the "front" of the spindle (rotor side)). I took measurements of the spindles (distance from center of LBJ hole to wheel mounting face) and here are the results.

_____________________ LBJ Hole to Wheel Mounting Face
CPP CP4S2 Spindles ____ 5.302"
'70 C10 Drum Spindles___ 4.703"
____________________________________________________
Difference_____________ 0.599"

The CPP CP4S2 spindles move the wheels OUT relative to stock '70 C10 drum brake spindles by 0.6" EACH SIDE.

The actual drop is very close to the advertised 2.5".

Thus, the offset chart supplied by CPP (found here: http://www.classicperform.com/Instru...fset_Chart.pdf), which claims 1/16" wider than drums is incorrect.

This is the most proof ANYONE has posted about track width "supposed" narrowing (on this forum) to date.
I agree they do narrow the track width.
By how much?
Even CPP doesn't know for sure.
__________________
Keith

Convert to disc brakes.
http://67-72chevytrucks.com/vboard/s...d.php?t=444823
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