I have a Roadster Shop '32 chassis that measures 23 3/8" across the front frame horns and 39 1/2" at the rear frame horns. These measurements are 3/8" - 1/2" narrower than a stock 32 frame. This makes it impossible to install stock width spreader bars. Has anyone else run into this? My chassis was shipped without the spreader bars- I think I know why...