what is the difference between the gsr and ls alternators? i put an ls alternator on my gsrwhen i swapped it and my lights will dim if i roll down the window and other things happen electrically. I looked them both up and the rs, ls, and gs alternators have the same part # and the gsr is cheaper with a different part #. The battery is brand new and has good connection.

 

no diference its same just check the bolt. i got a b20 integra 1997 and i have put a b18 integra 1990 alternator its same .just the amp can change just check that jsut its not a problem .and if you got a audio sisteme choose the altrenator whit more amp.