5KTQ Vacuum Booster?

[MWoodland at Dentsply.com]

I posted this question as part of another thread, but thought I'd better
split it out to a wider AUDIence.

Has anyone replaced the 5KTQ Hydraulic Brake Booster with a vacuum booster
off a 4KQ? I've heard tell of it in the past, and as I'm typically off the
boost when I'm on the brakes, it makes more sense to me. I'd just go into
the 'backup' pump and remove the pistons dedicated to the high pressure
circuit, keeping the low pressure circuit active for the P.S. That would
pull the hydraulic accumulator and booster from the circuit, leaving me
better suited to face the next 100,000 miles.
Any BTDTs would be appreciated.
Best regards
Mark

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