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Author: Subject: GBS Zero Diff and Gear ratios ford setup
AndyGaskell

posted on 13/1/18 at 03:54 PM Reply With Quote
GBS Zero Diff and Gear ratios ford setup

Hi All,

Im looking for some advice on gearing for my track based zero.

current setup:

Ford sierra xr4i 7” LSD 3.92
Standard Type 9 gearbox
2.0 zetec soon to be st170

Im looking at buying a BGH Heavy duty gearbox but i know very little about gear ratios.

BGH offer a few vartiations on gearing and i know the diffs are availaible in other ratios but whats going to be the best track based setup?

I have been tempted to buy an upgraded diff or have the the original LSD rebuilt but I dont want to spend money on it if its the wrong ratio setup.

Can anyone advise me on the ideal gearing before i empty my pockets.

Kind regards
Andy

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ian locostzx9rc2

posted on 13/1/18 at 04:12 PM Reply With Quote
Also depends on your wheel and tyre combo
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AndyGaskell

posted on 13/1/18 at 04:40 PM Reply With Quote
Wheel sizes are

195/50/15 front
205/45/15 rear

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ian locostzx9rc2

posted on 13/1/18 at 05:11 PM Reply With Quote
Sounds like the gearing looks good if you are getting the gearbox refurbished get a long first gear installed.
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theduck

posted on 13/1/18 at 09:36 PM Reply With Quote
This is invaluable when looking at gear ratios

http://westfield-world.com/gtc.html

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