Got Captainfab's axle perches/saddles mocked up today.
I approached it very similar to how I did the 14-bolt on my 3/4 ton service box truck.
I propped up the back end - bracing the trailing arms with 2x6 wood members. Removed the Ho32, and then made a template out of plywood (wafer board) - marking the existing axle perch holes. Then I lined my template up under the 12-Bolt. I was hoping I wasn't going to have to remove the existing perches from the 12-Bolt.
As you can see from the pics; I pretty much have Captainfab's axle perches slapped up against the existing 12-Bolt perches. I'll tac them on and then test fit it before welding them on permanently.
The pinion angle will remain the same.
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