Grinding when downshifting

I have tried 3 or 4 different fluids and although I am not a Pennzoil motor oil fan their Syncromesh is by far the best in my book. Don't overlook clutch adjustment though. It can cause the same symptoms and you'll notice it especially when shifting into reverse. http://shop.advanceautoparts.com/we...&utm_campaign=storekeywordless&utm_content=ad