The o-ring seal on the shaft of the trans brake shaft is leaking... well puking ... on my 826. I'll have to drain the oil (it's time to change it anyway) and drop that cover to replace the o-ring and the cover gasket. Should I expect to replace the trans brake lever too (you can't replace the brake pad separately), or not? The dealer doesn't keep it in stock, but if the liklihood is high I'll need it, I'll go ahead and throw it in to save time. Any other problems that have a high chance of existing, such as a corroded shaft that won't seal, etc. Any other little things I should watch out for? Thanks, gents!