Are synthetic oils and lubricants any quicker

[Nathan Stinson]

Originally Posted by buzzinhalfdozen

A call to any reputable company will confirm that running an aluminum spool decreases gear life, this is "fact and truth" you're 2 favorite things, heavy cars, above 2800 lbs. according to Mark Williams they DO NOT recommend aluminum spools....why?

I know this question is kind of off topic from the OP's question but I would like to get some more input on this item. I have ran aluminum spools for several years with no problems at 3000 lbs. I am assuming that the reason it is hard on gears with the heavier weight is that the spool can flex enough to change the contact pattern on the gear? I am changing combos this year and will now have to weigh 3400lbs and wondering if it would be better to switch back to a steel spool? What would be better gear life or accelerating the steel spool? How many runs before the gear starts to go away with the aluminum spool at that weight?