Diff gear recommendations

Hey all, I'm contemplating a diff gear change from our factory 323 to 355.
I'm not looking for top of the line, but want quality and NA made, if possible. Next to zero track time(once for the bucket list)
Mfg recommendations??
Thanks
Steve
That’s interesting, I’ve been thinking about going the other direction, 355 to 323. The 355 is just a wee bit much for highway cruising.