Thread: Diff gears swap.
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Old 07-30-2012, 12:31 AM
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Aussie Mike Aussie Mike is offline
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Join Date: Jan 2001
Location: Sunbury, VIC
Cobra Make, Engine: Rat Rod Racer, LS1 & T56
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First gear in the T56 is very tall @ 2.66:1 so going to 2.73: or 3.91:1 final drive really wakes them up.

The HSV Clubsport came out with 2.73:1 gears as an upgrade over the stock 3.46:1

The HSV GTS got 3.91:1 gears to wake it up even more.

I've got a Hydratrak diff center from a GTS in mine and the few times I've driven it on the street and the track it was great. I was very happy with the ratio for the power and weight I have. Cruising is still about 1800RPM at 110.

Cheers
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