yes 5.9 (mag) balance is different than a LA 360 (not sure the details). If it is an LA it would either need an OE TC with the 2 weights on either side of the drain plug with the regular plate or an aftermarket B&M flexplate which lets you use any neutral TC (904 TC or 727 TC). the # is 10239 for a B&M 904 plate & not sure what the # is for a 727. Pics are on eBay. EDIT yes find out if it is a mag & the roller cam leans me toward yes. I'm sure block numbers would tell ('92 maybe 93 up iirc) cuz the 5.2 was a '92 intro & the 5.9 was a '93 intro.