Rear Differential May 20, 2019, 02:42:03 pm 1990 chevy g30 needs fluid change. What would you recommend?
Re: Rear Differential Reply #2 – May 20, 2019, 04:41:04 pm "What would you recommend? "I would recommend that you take it to a trusted service facility and let them make that determination. Any shop worth it's salt will explain the whys and wherefores about lubrications for a rear differential. It should start with a curious inspection and proceed from there. Given the age of the rig a rebuild may be in order. 1 Likes
Re: Rear Differential Reply #3 – May 20, 2019, 04:46:22 pm Quote from: Mindispower - May 20, 2019, 02:42:03 pm1990 chevy g30 needs fluid change. What would you recommend?Do you have an owner's manual for the G30?Use what the manual calls for. SAE 80W-90 . 75W-90 synthetic can be substituted.Larry 1 Likes