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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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#32022 02/09/2005 4:17 AM | Joined: Nov 2004 Posts: 7 Junior Member | | Junior Member Joined: Nov 2004 Posts: 7 | I have a 57 NAPCO panel with the original 4 speed tranny. There is an intermediate shaft between the tranny and the transfer case. So I'm looking for a 5 or 6 speed, 2WD tranny that will handle 6000 lbs. 3.91 gears, I'd be happy to have a bellhousing made. All the trannys I find don't look heavy enough to handle the load. Any suggestions? | | |
#32023 02/09/2005 7:33 PM | | Anonymous Unregistered | | Anonymous Unregistered | Clark 5 speed from the same era? Most versions had fifth gear direct, but there was a version in which fifth was overdrive. They are pretty big though(used in the bigger trucks of that period) and getting hard to find. | | |
#32025 02/10/2005 5:56 AM | Joined: Oct 2003 Posts: 54 Member | | Member Joined: Oct 2003 Posts: 54 | NV 4500 or NV 5600? Both are modern 5/6 speed manuals. Both should easily hold up to any motor of that era; they are used behind the cummins. Easy to adapt to 350-style bellhousing pattern. NV4500 rated at 19500# GVW, with .73 OD. NV 5600 rated at 26000# GVW, .73 OD. Just a thought. | | |
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