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Old 12-13-2021, 01:08 PM   #11
67 twins
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Join Date: Mar 2019
Location: Herculaneum MO (20 minutes south of St. Louis
Posts: 591
Re: Proportioning valves

Quote:
Originally Posted by Keith Seymore View Post
Correct. Each unique part number was tuned for meter/split point/rear wheel pressure slope based on vehicle weight, CG location, wheelbase, front disc (or wheel cylinder diameter), rear wheel cylinder diameter, friction material, etc.

Releasing one size to fit all is like having one carburetor (and tune) to cover all engine applications.

K
So knowing this, what would you recommend?
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67 C10 283 T5 swapped longbed fleetside = wife's daily driver
67 C20 292 (originally a 250)4speed longbed fleetside w/original wooden bed=my project truck
67 C10 283+.060 (so a 292 as well)T5 swapped longbed fleetside=my DD
72 C1500 Sierra Grande 350 TH350 longbed fleetside=wife's fair weather truck
Can you tell we are fans of longbed fleetsides & 67s
Chris
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