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Need help deciding rear end gear size??????

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Old 12-11-2014, 01:39 PM
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Default Need help deciding rear end gear size??????

Im building a boosted 6.0w/ s480 turbo, TH400 not sure what gear would be best... Street driven to cruise in's and such... Drag strip 2-3 times a month...
Any help would be greatly appreciated
Old 12-11-2014, 01:46 PM
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what kind of rearend currently in it,what's current ratio ?
Old 12-11-2014, 01:49 PM
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Originally Posted by FirstYrLS1Z
what kind of rearend currently in it,what's current ratio ?
It has stock 10 bolt.. I know bad choice! But working with what I got.... I just got an open carrier so I can run mini spool so it really doesn't have a gear on it now..
Old 12-11-2014, 01:50 PM
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Depends on how hard your going to push it, if you trap around 140 a 3.42 would be good, 150+ a 3.23 or 3.08 would work good. Taller gear's don't seem to hurt your et any once your turbo
Old 12-11-2014, 01:51 PM
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I have LPW brace kit, carrier stud kit, solid pinion spacer... also
Old 12-11-2014, 01:53 PM
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I would be freakin stoked with 140 traps!
Old 12-11-2014, 01:55 PM
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I had 3 different gear ratios in my Camaro. A 2.73, 3.00, 3.23, and 3.25. The 2.73's and 3.00 were great for cruising and doing highway pulls but didn't work well with my combo at the track. My car ran the best with the 3.25 in my 9 inch, so a 3.23 in your 10 bolt would work well.
Old 12-11-2014, 01:56 PM
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Going to run a brake with a Circle D converter...
Old 12-11-2014, 02:03 PM
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Thanks for the input everyone.
Old 12-11-2014, 03:10 PM
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10 bolt being fed by a turbo and a transbrake. that's worse than a M6 with a 10 bolt. Torque multiplication of the convertor and then being hit from the transbrake. Please have your 1st run videotaped.
Old 12-12-2014, 10:15 AM
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Originally Posted by FirstYrLS1Z
10 bolt being fed by a turbo and a transbrake. that's worse than a M6 with a 10 bolt. Torque multiplication of the convertor and then being hit from the transbrake. Please have your 1st run videotaped.
++1 I want to see the explosion too.
Old 12-13-2014, 11:01 PM
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Damn guys is it going to be that bad?!!??!?!?!?!?
Old 12-24-2014, 03:15 PM
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Originally Posted by guppymech
++1 I want to see the explosion too.
I'll quote that...



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