Should I use what GM recommends for the 200r4 and for the G80 rear end? The reason for asking is that 30 years have passed since the printing of the info and I'm sure the quality or characteristics of the lubricants are improved.
Do I use the specified lubricants or the modern equivalents? How about the posi additive?
Thanks
(they say there is no such thing as a stupid question)
Do I use the specified lubricants or the modern equivalents? How about the posi additive?
Thanks
(they say there is no such thing as a stupid question)