Shift Kit

after clicking the link and reading "Goes back to low at any speed", I really want this kit... my only fear is that my trans already has an older mopar performance kit with a switched out separator plate so I'm worried I'd need a stock plate for this kit to work correctly? as far as I recall, the mopar kit replaces that plate, has a few aluminum plugs to place in specific locations, and I think the accumulator spring and one of the check balls is removed which might have an effect on things toward me being able to install this in mine. Sigh :blob: