Yes, you need one, I use the residual pressure valve from wildwood, instead of an adjustable porportioning valve, with the drum brakes in the rear use the 10 lb valve. install it in the rear brake line,
works great for me. $17.99 from Jegs[:-grin-:]
1100 I/S
__________________
Bill Belden
Retired Stock Eliminator
[emailSTK1100@comcast.net[/email]
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