I'm running a AW4 and 231J from a 94 XJ in my 94 Wrangler. Does anyone know which u bolts I need for the front shaft? The Spicer 2-94-28X, and the Moog 329-10 are not wide enough to fully seat against the u joint. Moog 534-10 is too wide. Any ideas or numbers I should try next? Thank you for your help.