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Old 12-26-2010, 12:02 PM   #1
1969 Flatbed
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Join Date: Dec 2010
Location: AZ City Arizona............................My page is still construction by a pack of sick stray cats.
Posts: 14
Lightbulb Rear end swap

I have a 69 GMC 3/4 ton flatbed that is mostly a work truck but I need to be able to go free way speeds. It currently has a 4.56 rear end in it with a 3 speed with a granny standard trans. I want to try to keep the trans because it comes in handy with and many jobs we have for it. Looking for suggestions as far as if there is a easy swap to a different 3/4 axle. I've also looked at a different ring in pinion but I can only go down to a 4.11 without changing the whole carrier.
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