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70-72 Chevelle & El Camino w/ drum brakes
1970 Chevelle, El Camino & Monte Carlo w/ disc brakes
This block was used on both disc and drum brake cars and is located down on the frame below the master cylinder. This is not a proportioning valve; it does not hold off pressure unless there is a loss of pressure in either the front or rear brakes. It will then contact the brake warning light in the dash. In 1968-69 and 70-72, this block is used on all drum cars and in 1967-70 with the round hold-off valve at the master on disc brake cars. In 1971, the disc brake cars use a different valve and the drum brake applications continue to use this valve. This block gives equal pressure to the front and rear brakes and is also great for 4 wheel disc applications. This item is an exact reproduction featuring a brass body, the correct bracket, gold plating and working insides. You will also find with current manufacturing procedures, the reproduction has no tool stamping marks and the edges of the part are much cleaner than the original.
From 1967-69, if the car had factory disc brakes it used the drum distribution block in conjunction with a disc brake hold-off valve, which made the disc cars a 2 part valve system (see part #DM93021). In 1970, GM added a third valve in the rear line for brake correction, so the 1970 system had three valves (see part #DM93022).
This part is shipped directly from our supplier. Please allow 2-4 business days for processing.
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