I've been reading up on gearboxes and the R154 looks to me like a very good candidate as long as you're willing to live with 5 speeds.
For big power turbo applications it might even be better than 6 speeds. I haven't checked the gear spacing, but I know 6th on our OEM boxes is just an overdrive that I don't think would be used at most tracks.
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Originally Posted by cdrazic93
Do you have anymore details? Be curious to know if they had just lemons or the auto isnt being pushed nearly as hard as the manual
If its possible I wonder if an R154 swap would be cheaper than an auto with the full upgrades
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