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Old 01-28-2014, 06:05 PM   #10
SS Tim
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Join Date: Aug 2010
Location: Edwards, CA
Posts: 7,507
Re: 4 speed question

Can't help with the trans ID at this point but I can recommend trying to find a 4.10 drop out from another truck. That alone would be a permanent 20% overdrive. If you were to find, and you are going to have to look, a NP-435CR would really help the drivability especially if you are empty a lot.
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