Is this a problem ? ?

[doonboggle]

I have begun to re-assemble the r-rear brake module (first one taken apart) of my 81 pickup … and have noted something that I need clarification on.  Attached is an image for referral … and comparison to … corresponding image in Bentley;
section 2;
subsection 8-4:Removing and installing brake shoes: image 8-6 on page 2-48 (my book).

On the book image, please note at the right end of the PUSH BAR where the opening is in the frontal section; and the perpendicular ‘wall’ section adjacent, is along the rear edge.

However, referring to the image of my unit … as taken off the truck … the opening is in the rear  … and the perpendicular ‘wall’ is in the front … all totally reverse of what Bentley shows.

Is this something I should correct?
Be advised that I have not yet viewed the left side … just in case.  The book image ‘appears’ to be a r-rear brake section; and is noted that “… truck rear brake is slightly different.”

TIA




EDIT:  I'M NOT SURE, BUT THINK I MAY HAVE FIGURED IT OUT THAT THE IMAGE IN THE BOOK IS NOT THE R-REAR, BUT THE L-REAR BRAKE UNIT.

[Baron VonZeppelin]

Doon ?
All you had to do was enlarge/look at the pics of my brakes i sent you last week ! 

How soon they forget. lol

The eBrake lever/arm always mounts to the rear (closest to back bumper). The auto adjuster wedge always mounts on the back side of the cross bar (side closest to backing plate).

The difference between mk1 rabbit/jetta rears and Truck rears - is the Truck uses larger shoes, drums and springs. All else is same. afaik

Compare the bends on the new shoe eBrake arms to the ones on the old shoes.
Over half the shoes i looked at (in person) were defunct and not feasible to install/perform correctly.

By the time i finished weeding through everyones offerings, and sourcing some good used drums locally - took almost 3 weeks to get everything lined up for my rear brakes.

[doonboggle]

When the l-rear wheel was taken off, noticed the attached image of a small circular spring dangling at the rear of the axle.  Nothing like this was noticed with the r-rear wheel. 
However, with the r-rear, no rear bearing was left behind when the drum was taken off ... whereas with the l-rear, it's rear bearing was sticking to the axle.

Today re-took off the r-rear drum and noticed that the rear bearing is being held inside with what appears to be a rubber seal.

Could the subject 'round' ... but loose and flattened on one side ... spring have come from that seal by chance.  If so, is this a critical item that needs to be addressed?

And is it something that a noobie like me can do; or is it a machine-mechanic process ... and what is the part number for ordering.  Tried to find it on ETKA, with no luck.

[Baron VonZeppelin]

Looks just like it used to be the inner spring on the inner part of the grease seal.

Grease seal and bearing should stay in drum - when drum is removed. Needs a new wheel bearing Grease Seal at minimum.
They just tap in with a flat piece of wood and hammer.
Or any number of selected methods.

[doonboggle]

Pried the one out of the r-rear drum, and did not see a spring in it. 
Neither did I see one on a search for part number, at the various vendors. 
It looks to be just a plain rubberized plastic barrier seal.

Are you sure about the spring being a part of it?  Part number is 357501641B.

Looks just like it used to be the inner spring on the inner part of the grease seal.

Grease seal and bearing should stay in drum - when drum is removed. Needs a new wheel bearing Grease Seal at minimum.
They just tap in with a flat piece of wood and hammer.
Or any number of selected methods.

[Baron VonZeppelin]

Different seals (various manufacturers) from different vintages will have varying designs. The spring would not be offered seperately if it were part of the seal.

There is nothing else involved with the rear brakes that would have anything like that involved with it. Unless it is something that just found its way in there somehow.

But, still ... the seal itself should be a pressed fit into the brake drum. I would replace it with a new one just on that account if no other. About $2-3 at AdvanceAuto AutoZone etc ...

[doonboggle]

Went to local NAPA, and sure enough, there are 2 versions ... one made of metal with interior spring ... and another just a simple rubberized thingie that fits into the hole.

Got one of the metal surrounded ones, with spring ... and it fit perfectly ... so am going to NAPA tomorrow to get another so that will have matching pair.

Different seals (various manufacturers) from different vintages will have varying designs. The spring would not be offered seperately if it were part of the seal.

There is nothing else involved with the rear brakes that would have anything like that involved with it. Unless it is something that just found its way in there somehow.

But, still ... the seal itself should be a pressed fit into the brake drum. I would replace it with a new one just on that account if no other. About $2-3 at AdvanceAuto AutoZone etc ...