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Old 05-14-2019, 01:13 PM   #10
MikeB
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Join Date: Jul 2000
Location: North Texas
Posts: 3,430
Re: Lowering Spindle Help Please

Quote:
Originally Posted by lolife99 View Post
And you need to verify that your ‘85 c10 has 1” or 1.25” rotors before you order drop spindles.
Just FYI, in addition to rotor thickness, the calipers and inner wheel bearings are different. Pads are the same.

Power brakes that used 1" rotors were referred to as "JB3" systems. Base 1.25" systems were "JD3". JB5 and above gets into larger rear brakes and hydraulic boosters instead of vacuum.
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Mike
1969 C10 LWB -- owned for 34 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, AAW wiring harness, 5-lug conversion, 1985 spindles and brakes.
1982 C10 SWB -- sold
1981 C10 Silverado LWB -- sold, but wish I still had it!
1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming.
Retired as a factory automation products salesman.
Worked part-time over the years for an engine builder and a classic car repair shop.
Member here for 23 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then!
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