Wondering if I can just count the number of turns to get the pinion nut off to replace the seal, and reinstall that amount without messing up the backlash of the gears... trucks has 137k on it... . i did it with me GM 14 bolt and never had any problems... thanks Russ... . Love the gauges I just got in... anyone with a 98. 5 and up needs to get that f/g installed... had mine checked at a shop when i bought it in late dec 04, did my gauges last weekend... . O fp... changed the lift pump the next day... 15 idle (thats all my gauge will read to) and 10 WOT... hopefully saved my IP... . had to tow a buddy to the dealer a week before. . 2200 later they replaced the injection pump but not the lift pump... ?? thought you did both if the IP was bad... . he had 18 days of warranty left... . merrry xmas. . lol... . Russ