Jump to content

620 brake questions


Recommended Posts

Im going to be reassembling the breaks on my truck after work and ive read up on tips and tricks but one fact still escapes me. How do you determine which shoes are leading and which shoes are trailing?


also can anybody show we what the front wheel bearing look like on a 74 620?


Mine showed up from rock auto but the image they provide does not match what showed up. Ive done wheel bearings on disc front ends but never drum fronts so that may be why these look wrong to me



Link to comment
  • Replies 12
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

That's just one bearing....the part that sticks up is where the seal rides. Lot's of info in this thread about the bearing difference....




No clue on the brake adjust thread.....there's so many different threads about it, I'm not sure how you'd find just that one.

Link to comment

Yep. The outer bearing is the same on all the drum trucks.....30304.


The 320/520/521 inner bearing is a 32KB02. Here's where it gets a bit confusing.... that 620 inner bearing is a 32KB02/11B. I'm 95% sure about the "11B" suffix.....but I'd have to check my thread or a bearing to be 100%.


Here's a BA number for it..... BECK/ARNLEY Part # 0513178 Might be a bit easier to cross. The 620 drum bearing is much easier to find, but I wouldn't be surprised if they start to run out like the 521 bearing.

Link to comment

sweet! thanx guys, i did get that bearing in and as you guys said its right. Ive never seen one like that. I did the wheel bearings on a 710 and a 210 and they didnt look like those do.



New question! i mashed the wheel seal for the front last night, i have a new one coming today but i was looking for recommendations on installation of the seals?? I don't have any sockets big enough to cover the whole seal and the fucker kept wanting to go in one side at a time and not nice and evenly. Ive never had an issue before using a hammer and piece of 2x4, didn't work this time tho.

Link to comment

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...

Important Information

By using this site, you agree to our Terms of Use.