Mike,
If using the Sierra brake system with drums at the back you can throw the deceleration valve away.
Get some VWC345 wheel cylinders from your local autofactors, which are 19.05mm bore instead of the 22mm bore fitted to the Sierra as standard, and the braking system will be fine.
This is how Gus's brakes are done and it passed IVA fine.
Hope that helps.
Dave
|