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Old 01-17-2011, 01:19 PM   #2
lolife99
67-72 parts collector,…
 
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Join Date: Nov 2002
Location: Mid-MO
Posts: 22,684
Re: "Disc to Drum" Conversion Threads,...

Quote:
Originally Posted by kev2809 View Post
i dont mind stickies, maybe make a new thread in the suspension faq section for all the different setups...maybe?
Ok,... here's the break-down of what you'll run into.
(this relates to just 1/2-ton conversions)
DRUM TO DISC CONVERSIONS

60-62 truck with:
63-70 crossmember
71-72 crossmember
73-87 crossmember

63-70 truck with:
63-70 crossmember
71-72 crossmember
73-87 crossmember

71-72 truck with:
71-72 crossmember
73-87 crossmember

60-72 trucks with "unknown" crossmember swap?
This is where it's hard to determine the correct parts needed.

Spindle Problems:
71-72 spindle on 60-62 trucks
73-87 spindle on 60-62 trucks

71-72 spindle on 63-70 trucks
73-87 spindle on 63-70 trucks

71-72 spindle on 71-72 trucks
73-87 spindle on 71-72 trucks

There are two styles of 73-87 spindles:
73-80 HD 1.25" wide rotors.
81-87 LD 1.00" wide rotors.
(also the 81-87 1/2-ton trucks could have the HD rotors)

All associated parts need to match the rotors.
(bearings, calipers, rotors,... all have to match the spindles)

All aftermarket 6-lug rotors ONLY work with the 1.25" wide HD spindles.

Aftermarket Spindles and Drop Spindles:
This is the best method of getting the correct spindle for the year of your truck.
Spindles are sold for the following years, that require no balljoint or tie rod change:
C10
60-62
63-70
71-72
73-87 (HD 1.25" wide rotors)
81-87 (LD 1.00" wide rotors)
C20
71-87


Upper Balljoints:
Grouped by Differences:
60-62
63-70
71-72
73-87

Lower Balljoints:
Grouped by Differences:
60-62
63-70
71-87

Inner tie rods:
Grouped by Differences:
60-62
63-64
65-70
71-72
73-87

Outer Tie Rods:
Grouped by Differences:
60-64
65-70
71-72
73-87

Tie rod Sleeves:
Grouped by Differences:
60-64
65-70
71-87

This is just a sample of all the different directions the questions can go.
__________________
Keith

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

Last edited by lolife99; 02-14-2011 at 02:11 PM.
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