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Old September 30th, 2018, 04:20 AM
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LEWISMATKIN LEWISMATKIN is offline
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Join Date: Jan 2013
Location: RIDGE MANOR, FLORIDA
Truck: 1965 1002 GMC V6-305E
Age: 62
Posts: 282
Rep Power: 137
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Default Re: 66 SWB with a 305 V6!

It may have been ordered that way. Dad told me that on 1000 series trucks that he sold that usually if a truck was going to farm or off-road work, he would equip it with a 3.54 spicer 44, if not, it got the 3.07 ratio rear end. It would make sense to have the sm420 installed at the factory in combination with the 3.54 axle. In this instance, the original owner may have had tighter navigation requirements that an lwb vehicle would have more difficulty with.
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