My shop used to use FRPP when they were still made at the Sterling plant in Michigan. Once the FRPP production was moved, the quality has dropped.
Well, that would explain some things. Is that why Motive supplies FRPP the gears (as far as I've heard)? I guess if people wanted to try another brand, Yukon has worked well for me on the last project vehicle I had. 4.88's and a very faint decel noise when letting off the gas.
As to the Motive, word is don't get the regular Motive gear but get the Motive Performance gears in the red/black box made in Italy.