i recently purchase a 1993 toyota GLi Automatic transmission, my probelm is when im on N tahimik naman yong engine my vibration but very mild lang, but pag naka D or R or P ako medyo nagvivibrate na sya, nararamdaman ko yong vibration pagnaka D and brakes ako, minsan mild lang minsan medyo di ok, pero im not saying na sobrang lakas, is there a way to para mawala to...pinacheck ko na sya sa mechanic pati engine support ok nman daw, pinacheck ko na rin yong atf , oil etc..no over heat naman din,... ano kaya magandang gawin para mawala or mabawasan yong vibrations., is this normal kasi medyo matanda na ang auto..im planning to change the atf to RP, this weekend will this help, advise naman po mga peeps..