Hello all. I have a friend selling a 98 Buick Regal GS for $400 but the tranny is bad. Now my cousin has a transmission from a 98 regal LS that he will sell me for $50 and install for 150. My question is will that transmission work in the GS since it came out of a LS? He says the pin codes on the transmission are the same but will it shift properly? Any info will be appreciated.