Might be cheaper to buy a 8.75 a rear and axles install the 3.55 chunk and then sell the leftovers. Some of the 8.75 axles cant be cut and resplined due to being tapered. But someone looking at a tub job could use your old housing.
You have a good point Daredevil. I had planned on buying new aftermarket axles anyway and am presently looking into a price on having the housing narrowed. If having the housing narrowed is more expensive than an "A" housing, I'll just sell it. Thank you for the advice!
I might add that I'm having some difficulty in finding someone here in Colorado that is capable of performing this work and doing it right.