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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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| | | | Joined: Sep 2008 Posts: 7 New Guy | | New Guy Joined: Sep 2008 Posts: 7 | I have a 49 Chevy one ton that has a 5 lug rear end bolt pattern. Is this common for this year? All that I have found in the search section does not include a 5 lug pattern. Does anyone have a measurement guide to this pattern? I will need to upgrade the rims and tires as they still have the split rims. All help would be appreciated. | | | | | Joined: May 2006 Posts: 8,351 'Bolter | | 'Bolter Joined: May 2006 Posts: 8,351 | I can only think of one of 2 possibilties that it would have a 5 lug rear, 1-someone has swapped out the rearend, possibly for a Dodge or IH, or 2-It's not a 1 ton, but perhaps a 1 1/2 ton. Are the fronts 5 or 8 lug?
Bill Burmeister
| | | | | Joined: Sep 2008 Posts: 7 New Guy | | New Guy Joined: Sep 2008 Posts: 7 | Thanks for the response. I checked the front and they are 8 lugs. Now the truck was originally a fire truck. Did they put a heavier rear end in those trucks? | | | | | Joined: May 2006 Posts: 8,351 'Bolter | | 'Bolter Joined: May 2006 Posts: 8,351 | Not from the factory. It might have been done later in it's life to increase load capacity.
Bill Burmeister
| | | | | Joined: Oct 2006 Posts: 4,983 Master Gabster | | Master Gabster Joined: Oct 2006 Posts: 4,983 | Count the bolts on the pumpkin.
~Jim
| | | | | Joined: Sep 2008 Posts: 7 New Guy | | New Guy Joined: Sep 2008 Posts: 7 | There are 10 bolts on the pumpkin | | | | | Joined: Oct 2006 Posts: 4,983 Master Gabster | | Master Gabster Joined: Oct 2006 Posts: 4,983 | Could be a GM 10 bolt. Look for any identifying marks on it.
~Jim
| | | | | Joined: Mar 2006 Posts: 1,703 Shop Shark | | Shop Shark Joined: Mar 2006 Posts: 1,703 | measure across the studs at the widest point looking at the studs as if they were a star, out of the 5 studs 2 will be wider, if they are 4.5" center to center its a GM rearend
Tim | | |
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