Here is a test of knowledge

[ubtripn]

So I have been having trouble installing new front brakes and hardware on my 68, Secret Squirrell pointed me to the retainer springs. (Thanks for that) They were indeed sticking out farther than the side of the shoe. I look at the hardware rebuild kit and it has 8 pins that these retainer rings latch on to. 4 are shorter than the other 4. I put the short ones on and gain the clearance I need.

What are the longer one's for? Did our trucks come with more than one style of drum brakes in the same year?

Also, can anybody tell me if the front brakes are on the same "circuit" or is it corner to corner. I cannot get the front brakes to bleed right. I know that the procedure starts in the rear but in the past on other vehicles I have been able to just bleed the front. I had to put new wheel cylinders on both front drums so I know I got a lot of air, thanks for the help.