Hi Blue,
I have never purchased from LEB but, would imagine they supply good products. :shrug
itwasFREE!!!! bought one from them a while back.
(I don't know the end result tho')
A Guy can't go wrong with an alternator upgrade, Especially if your adding a Lot of Electronics.
(Dual Batts, Winch, Lights, Elec Lockers, etc...)
Good Luck.
Later,
Dragon.