What is the size of the hole in the A frame?
You stated "The problem is the inner tube
has to be 1 1/2 inch in diameter to fit the bottom hole
An 1 1/2 inner tube may have a 2" OD main outer tube.
Here is the current day Atwood catalog. See page 16
Atwood Chassis Components Brochure
Atwood is a stand up company. Call them if needed. I have in the past and they go out of their way to help you. I never called on a jack, a furnace but still the customer service was outstanding.
Measure the hole in the A frame first and measure the OD of the out tube that goes through the A frame hole
Hope this helps
Current Sunlines: 2004 T310SR, 2004 T1950, 2004 T2475, 2007 T2499, 2004 T317SR
Prior Sunlines: 2004 T2499 - Fern Blue
2005 Ford F350 Lariat, 6.8L V10 W/ 4.10 rear axle, CC, Short Bed, SRW. Reese HP trunnion bar hitch W/ HP DC
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