i have a 89sc i just found a shop manual for sale .problem is the manual is for a 90sc are the 89sc and the 90sc the same that i could use the 90sc manual for repairs. thanks for any info guy.
They are not identical but VERY NEARLY SO .....you could use the manual most likely with no problems whatsoever. It is still better than what you would get with the Haynes or Chilton.
My Helms manual for my '95 SC has a lot of figures and drawings for the '93 models. My '96 LX Helms manual had a lot of pix of the '95 models! I guess they didn't catch all the changes for the different models.