BD'in a mazda on 20x8.5's

Edited: 9/18/2010 12:45:31 PM by LowLyfe83

my brothers got an 89 mazda b2200 that we are starting a full build-up (layed out and body dropped to the rockers) with BAD Havoc 20x8.5's with 7" backspacing and 245/30's with an O.D of 25.8"

His stock brake booster is shot and needing to be replaced, so thinking ahead were trying to figure out if we will need to run a smaller booster in order to clear the wheels when layed out.

Any info would be huge, were tryin to get this truck Rollin!

245/30 is pretty big for a little Mazda. Mine black one had 225/30. It would have a hard time getting out of it's own shadow. You can look though my build pics on www.tre5customs.com and see how close that tire was to the booster. I did nothing to it, but I don't remember how close it was. It was body dropped 2.5" and laid rocker.

from the looks of it, on a mazda the wheels dont even come close to becoming an issue, unless im not seeing somthing?

About the 245/30's he wanted a little more sidewall protection so he went with em. His motors got a fresh rebuild, bored over, larger cam, weber carb, headers etc. so it should make up for the big meats.

Edited: 9/18/2010 9:51:25 AM by tre5

Those tires are going to balloon over the wheel on a 7.5" also.

Oh shit, my bad. his wheels are 8.5's lol

i was reading through other post's just before i made this thread about 20x7.5's on mazdas.

245/30 will fit under the stock hood. Will just need to do more cutting than if you were to run a 225/30.

My mazda has 245-35-20 on it and laying rockers flat. So 30s will have no issues besides the normal tubbing and booster change. Obviously suspension mods aswell.

Maz2low
thats what im asking about. which booster should we swap it with?

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LowLyfe83 said:

Maz2lowthats what im asking about. which booster should we swap it with?

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A GEO METRO booster from 90's will bolt right in, but is alot smaller. You will need to lengthen the threads on rear part if I remember correctly.

not to thread jack and bring one back from the dead.. but you can you run a 20x8.5 with 6.25 inches of backspacing on the rear if you run a stock mazda rear end? thanks