Disc Brake Conversion Failing

Son2PopsCuda said

So I just read that a metering valve allows the rear brakes to engage first and than the front brakes after a predetermined pressure. The proportioning valve I put on has this metering valve. I'm set it up without the metering valve and let you guys know the end result. :thumbsup:

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Yes, that is true. But, like I said, that's BOTH rear brakes. If only one is locking, that problem is between the T block on the rear axle and the rear brakes. Even if the metering valve is messed up, it would effect both rear brakes equally. It sounds like you have more than one issue here.

Son2PopsCuda said

I haven't done anything different. bleed the MC, bleed the Front, Bleed the rear. there wasn't any air spitting out any of lines at the time of bleeding the system.

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The metering valve requires the brakes to be bled in order, so that the metering valve sets correctly. Passenger rear, drivers rear, passenger front, drivers front is the correct bleeding order.

But even if the metering valve were misadjusted, it would effect both brakes equally. In the rear at least you have one problem that's between the "T" and the rear brake. Air, brake line issue, brake line adjustment or contamination.