OLDWICK, N.J.–(BUSINESS WIRE)–A.M. Best has upgraded the Financial Strength Rating to B++ (Good) from B+ (Good) and the Long-Term Issuer Credit Rating to “bbb” from “bbb-” of Repwest Insurance Company (Repwest) (Phoenix, AZ). The outlook of the Long-Term ICR has been revised to positive from stable while the outlook of the FSR remains stable. Repwest is a wholly owned subsidiary of AMERCO [NASDAQ: UHAL], a publicly traded holding company that is also the parent of U-Haul International, Inc. (