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Old 03-08-2018, 11:09 AM   #93
fredscarryall
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Join Date: Feb 2010
Location: gresham oregon
Posts: 755
Re: Fastfreddys 454ss

Planning on keeping the turbo 400 and add a shift kit. Then I’m going to add a bolt on gear venders overdrive. I would just have to get a shorter driveshaft. Then I have to descide to keep the 3.73 rear end ratio or go with a 4.11. It just depends on what the overdrive rpm final shift point number are. The nice part is these overdrive units can handle 1200 horse power and you can have an overdrive bolted in. In about 2 hours
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