Absolute garret doesn’t sell a 38r with a billet wheel. If it has a billet wheel and wasn’t balanced it’s going to fail prematurely from inbalance.
I do agree the riffraff billet wheels are a great upgrade. I’ve used the harder 360 kit with great results in my old turbo.
99.5 f250 7.3 4x4- 277k FF 160/30, Hydra w/SDK Tunes, S&B CAI, 4" Exhaust, Van turbo w/Riffraff Billet wheel, Autometer Gauges, Built Trans, Trucool Max, 08 Tow Mirrors.
Dads-2000 f250 7.3 4x4- 118k K&N Intake w/Amsoil Filter, 4" Exhaust, Autometer Gauges, Superchip 1705 (Tow Safe), BD Billet Wheel, TruCool Max, 08 Tow Mirrors.