So this is my first time rebuilding a front axle. I finished my passenger side and am currently trying to get the driverside shaft in but am having the hardest time getting it in. I clearanced the birf like longfield said to by putting it into the spindle and spinning it and there was no rubbing. I can get the birf in just to the point where you cannot spin it(flat spots touching the knuckle ball) but then it will not go in any further. Ive tried spinning the driveshaft as well with no luck. Is there anything else I can try or something I may have overlooked? This is going into an 83 housing with 5.29s and a lockrite.