A little confused. may have to change out current (orig) booster because of ongoing brake problems.Thinking of getting a nice chrome one at the same time. I'm unsure on the implications/reasons/issues on the dual-diaphragm 7" original http://www.summitracing.com/parts/AAZ-54-73202/ vs the single diaphragm 9'' booster replacement http://www.summitracing.com/parts/TFF-2125NA-3/ are they interchangable or do they have something to do with trans (i have an auto, Disc/Drum).?Is the dual diaphragm more efficient/better - in either case im probably going to have to run a vac tank because of cam.
Finally, is the 9'' (if applicable) shorter from firewall to tower than my orig. set-up?
Thanks in advance
Jack
69' Booster (s)
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