I put a 14BFF in the rear of my 85 K10 pickup. I used the conversion joint everyone gets from napa. Well, it went into the driveshaft fine. And I got new straps for the 14BFF. Well, if you look at the yoke of the axle and the straps you can see daylight all the way around. What did I do wrong? wrong joint or wrong straps? Any help appreciated. part number 447 is what i used.