I have a 56 Sunliner with a 292.  It has a 3 speed with overdrive.  When I bought the car it had a 3 speed in it but one time in its life it must have had an automatic because it has 3.22 rear end.  Based on my shop manual it should have a 3.89 rear end in a 8 1/2 case.  I can not get going with out babying the clutch and would like to get the right gear set.  Is there anything interchangeable or a source for a 9/35 pinion drive gear set?  Are there companies that can custom make the ring and pinion set?

Thanks Frank