[speedygonzales]

It also appears that the original MC in the vehicle has twice the volume output from the rear port vs the front port According to the page posted by Keith. Which is usual for GM where the larger back reservoir feeds the front brakes when there are front disk and rear drums.

So what about the new style MC? Does it have a difference from the front and rear ports? If it does, I should switch the ports like the SSBC says to do. If it doesn't make a difference than switching won't do anything bad. It sounds as though I may try switching the ports. I'm about ready for a bleed anyway.

I'll let you know what happens.