2012 silverado 1500 broken rear end and noticing things

[swampratt]

Yea my buddy heard clunking in his truck rear end yesterday and got it home.
Took the drums off which was a chore.
Then took the rear differential cover off and found the carrier broken in 4 pieces.

I went there this morning to get the C clips off the axles as he spent 7 hours last night not ever doing this before trying to get them out.

Now he is on the search for another carrier or complete 6 lug rear end to go back into the truck.
3.42 gears.

Now he showed me the drums and this is where I noticed a trend.
The drums have worn in the middle about 1/4" deep rounded groove about 3/4" wide.

He said he never seen this happen before, I looked at his brake shoes and seen the outer edges of the shoes bent down away from the supporting metal rib.

Plenty of meat on the shoes by the way.

Looks like the issues I had with all aftermarket shoes I stuck on the 1957 chevy 4 door.

Contact in the middle of the shoe because the supporting metal on new shoes are thin and weak.

He has never put rear brakes on this truck and has had it since it had about 30,000 miles on it.
Lots of highway driving 112,000 miles on it now.

Effin junk stuff even for 2012 so I do not feel so bad about the junk i get for my 57 now.

Can't believe the carrier broke apart.
This is the 8.6 rear end.

4 wheel drive and 6 lug or i would carry a 9" ford truck rear end over to him and fix him up.

He said it would not look good with different wheels if we did s ford swap in the rear.
I told him it looks pretty bad as it is now up on jack stands

I hate GM rear ends. I broke every one I ever had.

Have any of you guys dealt with upgrading to the stronger stuff in this newer year?

 

[caliberbob]

Yea my buddy heard clunking in his truck rear end yesterday and got it home.
Took the drums off which was a chore.
Then took the rear differential cover off and found the carrier broken in 4 pieces.

I went there this morning to get the C clips off the axles as he spent 7 hours last night not ever doing this before trying to get them out.

Now he is on the search for another carrier or complete 6 lug rear end to go back into the truck.
3.42 gears.

Now he showed me the drums and this is where I noticed a trend.
The drums have worn in the middle about 1/4" deep rounded groove about 3/4" wide.

He said he never seen this happen before, I looked at his brake shoes and seen the outer edges of the shoes bent down away from the supporting metal rib.

Plenty of meat on the shoes by the way.

Looks like the issues I had with all aftermarket shoes I stuck on the 1957 chevy 4 door.

Contact in the middle of the shoe because the supporting metal on new shoes are thin and weak.

He has never put rear brakes on this truck and has had it since it had about 30,000 miles on it.
Lots of highway driving 112,000 miles on it now.

Effin junk stuff even for 2012 so I do not feel so bad about the junk i get for my 57 now.

Can't believe the carrier broke apart.
This is the 8.6 rear end.

4 wheel drive and 6 lug or i would carry a 9" ford truck rear end over to him and fix him up.

He said it would not look good with different wheels if we did s ford swap in the rear.
I told him it looks pretty bad as it is now up on jack stands

I hate GM rear ends. I broke every one I ever had.

Have any of you guys dealt with upgrading to the stronger stuff in this newer year?

 

[Ryan500L]

It's a 2012 with drum brakes on the rear? I thought everything had disc on the rear by then.

 

[Ready_fire_aim]

Sounds a normal day in the life a GM owner to me

 

[1911Sooner]

Had the differential fluid ever been changed? Did it tow a lot?

 

[PanhandleGlocker]

It's a 2012 with drum brakes on the rear? I thought everything had disc on the rear by then.

This most recent Toyota Tacoma generation just now switched to disk brakes in the rear. They’ve been running drums for a long time.

 

[swampratt]

Had the differential fluid ever been changed? Did it tow a lot?

I would say never changed differential fluid.
Towed stuff all the time.
Heck it's a truck.

But I found the carriers are the same as used in cars.
And with research I found these like to break all the time.
Probably wait until Monday and call Inland truck parts former drive train specialists and see what they have to say.

I am thinking 913A481. Which is an Eaton Detroit truetrac.

 

[dlbleak]

I’m having similar issues with a fleet of ford transit vans. The rear rotors are so soft that they round over the pads. The rotor lip is so big it starts rubbing the top edge of the pad back plate. It’s a PITA because the rear axle has to come out to pull the rotor. Yep, you read that right, the axle has to come out to replace the rotor. Doing my 5th one tomorrow.

 

[swampratt]

I have read up a little on cryogenically treated drums.
Could be something to look into.

Buddy bought an entire rearend 20,000 miles on it.
I helped him stick it in as he was going to swap parts from it into the junked one.
He just paid 380 for the good one complete with lines and better brakes and better drums.

He is now rolling and is happy.
I told him to change the front differential fluid.
He is bringing it over here tomorrow to do that.

His driveway is gravel and busted up concrete.
It sucks to lay on it and work under a vehicle. I Did it for a couple hours today.

 

[Mr.Glock]

Tell him no friction modifier needed in his. Just good 75/90.