Richmond Mopar 8.25 4.10 gears

I have a nice gently used set of Richmond 4.10 ring and pinion for 8.25 Mopar. Would like to trade for a good set of 3.55 or 3.73 for 8.25. Also have a sure grip unit that can be had for right price. It's in working order just needs a new cross shaft. Gears alone were $165 and sure grips go for I have seen $200-300. So I will trade for small block parts of equal Trade value or sell individual or all together.

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