Hey man the parts car i have had tan/brown interior. Bummer right? My 83 is black inside also. what do you need for a passenger axle not the stub in the control arm that im tearing up it the end that goes into the diff. I never had this problem till i installed the obx diff and then went to the strip. I could not launch the car at all or it would shake so hard my glove box would open and sun visors would flip down. It was very bad and ran a 13.2 @ 108 it was crap car should run mid to low 12s. Passenger axle price? Thanks and good luck with the LS swap.