For last 70,000 miles or so i have used a qt. of rislone for lifter noise, i use this every time i change my oil at 3,000 miles i can always tell when i need and oil change lifters make noise change oil and use 1 qt replacement with oil change noise goes away i now have 175,000 and runs like champ. i don't if any body else uses this product but it works for me.

sua dana 44 conversion 5.38 gears, 4.3tbi,700r,dana 300 w/tera low 4:1 gears