Ford Performance Rear Hubs w/ ARP Studs Issue?

[speedracer99]

So put a new set of fp hubs on a 2020 mustang road race car (M-1104-B) and after 1 race weekend (in the rain no less with too many fcy's) I was prepping for our next race at vir and noticed what I think is excessive play in the bearing. I called FP and they sent me another set under warrantee. we pulled the 2 new ones from the box and decided to bench test them for play (I have a cnc machine shop so have all the cool measuring tools and fixture plates) and the new ones have the same play as the one we took off (driver rear). Funny thing is the pass rear used one has no play at all. So I now have 3 with play and 1 with no play. Does anyone know what the deflection measurement should be (if any) or is all this normal?

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[GTP]

That was no time or trouble for you at all. Nice.

/sarcasm

 

[speedracer99]

ive gotten good at taking these things apart and reassembling it all lol. I have like 5 thou of play in 3 of the bearings and none in one of them. try and get and answer from ford is like pulling teeth - her 1 lady I talked to say there was no ford performance division lol.

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