Posted by andy r on June 12, 2018 at 22:12:26 from (166.181.84.158):
Truck is a 1979 GMC C7000 with a single axle on back with duals. Engine is a 366. Truck has a booster behind the drivers side front wheel. Truck hauls short of 400 bushel. I think my master brake cylinder is leaking some. Looks as if the firewall is wet inside and out and the master brake cylinder does loose oil over time. Searching I find a part number 10-57577 with a 1 3/4 inch bore and a 10-57579 with a 1 1/2 inch bore. Anyone know if they are basically the same. Could I use a 1 3/4 inch bore even if the truck calls for 1 1/2 inch bore. Takes two pumps of the brake pedal to get good brakes. Maybe the 1 3/4 inch bore would help to fix that problem. Thanks.
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Today's Featured Article - History of the Nuffield Tractor - by Anthony West. The Nuffield tractor story started in early 1945. The British government still reeling from the effects of the war on the economy, approached the Nuffield organization to see if they would design and build an "ALL NEW" British built wheeled tractor, suitable for both British and world farming.
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