Need ps pump, which one??

[madspeed]

My ole whiny PS pump is getting really loud so I think I'll find a replacement. Should I get just the standard replacement or is there one from another year or model that is a better choice for a fox mustang?? 91 If it matters

THX

 

[Kdubslugga]

I would just get a stock replacement with a lifetime warranty. Ive never heard of anyone using other units or anything, its either they get rid of it, free up some 4 or 5 horsepower or get a stock unit replacement...