The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Taking a road trip, 1987 V10 4X4 short step, about 2300 miles. What fluids....

**57NAPCO** · 11-16-2020, 06:43 AM

I’m guessing 80-90 gearlube in the diff and SM465 transmission. Transfer case is a different story, could be ATF or gear lube depending on the model. The NP203 takes 30W oil, NP205 takes 80-90 gearlube, NP207 and 208 take ATF.

11-16-2020, 06:43 AM	#3
57NAPCO F’B’D guy Join Date: Feb 2004 Location: Texas/Maine Posts: 2,210	Re: Taking a road trip, 1987 V10 4X4 short step, about 2300 miles. What fluids.... I’m guessing 80-90 gearlube in the diff and SM465 transmission. Transfer case is a different story, could be ATF or gear lube depending on the model. The NP203 takes 30W oil, NP205 takes 80-90 gearlube, NP207 and 208 take ATF. Last edited by 57NAPCO; 11-16-2020 at 07:18 AM.