So my buddies 08 750 started leaking out where the driveshaft connects to the front diff. There isnt nay play in it so its all good, but the seal is forsure bad. He never changes the fluids hardly and it is contaminated, so more then likely that is the cause. He has about 900mls on it and only changed it twice that i know of and ride water alot. Anyways, I have rebuilt several diffs but never messed with the pinion/shaft seal. Does it just pop out like the motor seals or what. I dont have either bike here so i cant look at them to see.I looked at it on babbitts and it looks as if it may just pop in, but you cant really tell with them pics. Thanks.