|
Register or Log In To remove these advertisements. |
|
|
|
|||||||
 |
|
|
Thread Tools | Display Modes |
05-27-2024, 10:14 PM
|
#1 |
|
Senior Member
 
Join Date: Sep 2007
Location: Albuquerque NM
Posts: 7,840
|
3/4 ton rear diff help
Ok so I picked up another done truck and pulled the rear end out only to find driver side spi s good but passenger side won't budge. Pulled the cover a d the gears spin around the locked up gear . No glitter in the oil no chipped teeth that I see. Ok so I think maybe the brakes are seized.. now I'm trying pull the drum of and man it's not moving out.. it'll wiggle a little. That's it.
Any ideas why the passenger side would not move at all? And any counters on removing this drum. I'm beating the hell out of it after removing the 2 screws 10 bolt 3/4 ton rear 8 lug
__________________
1967custom |
|
|
|
05-27-2024, 10:23 PM
|
#2 |
|
Registered User
Join Date: Jul 2018
Location: Catskill Mountains,NY
Posts: 8,225
|
Re: 3/4 ton rear diff help
You need to remove the axle first then the cage nut . Drum will then come off with the hub . Much easier than trying to separate the drum hub assembly
__________________
Mark 72 c20 custom camper Husky edition, 66 SS396 Chevelle 1964 Hawk, 63 Avanti,62 lark 1969 AMX , 1968 c20 stepside ,85 K20 1977 Suburban sold 68 anniversary. Last edited by 72c20customcamper; 05-27-2024 at 10:45 PM. |
|
|
|
|
05-27-2024, 10:28 PM
|
#3 |
|
Who Changed This?
Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,165
|
Re: 3/4 ton rear diff help
Maybe try using some tools and back the adjuster off enough to allow the drum to rotate. I've seen rivets into the drum where the friction material was completely gone, believe it or not. Took a lot more backing off of the adjuster to get the drum off.
__________________
~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA |
|
|
|
|
05-28-2024, 05:22 PM
|
#4 |
|
At the body shop.
Join Date: Aug 2009
Location: Land of fruits and nuts.
Posts: 5,160
|
Re: 3/4 ton rear diff help
My 68 had the adjuster spring break. The spun themselves until the adjuster separated.
Had to cut drum open to disassemble. And was outboard drum
__________________
" That didnt make it any newer " " Dont antique the equipment " |
|
|
|
|
05-28-2024, 09:45 PM
|
#5 |
|
Born Psycho
Join Date: Feb 2001
Location: brentwood,cal,usa
Posts: 4,780
|
Re: 3/4 ton rear diff help
looking at your second picture that gear oil looks like it has water in it and it appears to have rust on the ring gear. i know that has nothing to do with your question but i thought i'd point it out.
__________________
jerry moss 72 cheyenne super K20- tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,tow hooks,bumper guards,toolbox,aux. fuel tank,posi front and rear,plus other goodies!!! SOLD 69 suburban K20-tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,4 inch all spring lift,4 speed, 14 bolt full floater, dana 44 HD,warn winch,posi front and rear,tow hooks,plus other goodies. 73/80 chevy/gmc K20 SB400,turbo 400,205,tilt,a-c,gas hog. 77 K/5 cheyenne blazer-daily driver/beater. SON HAS IT NOW BRENTWOOD,CALIFORNIA |
|
|
|
|
05-28-2024, 11:34 PM
|
#6 |
|
Senior Member
Join Date: Sep 2007
Location: Albuquerque NM
Posts: 7,840
|
Re: 3/4 ton rear diff help
I appreciate all the help fellas. I'll try spinning the adjuster back manually first if that doesn't do it I'll remove the hub.. never do e a 3/4 ton. I'll be taking lots of pics.
Side note... when I removed the brake cables the seized side was tight to where I had to cut the cable at the coupler to remove it. Driver side separated no problem.
__________________
1967custom |
|
|
|
|
Yesterday, 08:50 PM
|
#7 |
|
Proprietor of Dale's Corner
Join Date: Nov 2012
Location: Vacaville , CA
Posts: 15,881
|
Re: 3/4 ton rear diff help
It looks like a dana 60 open diff. Get the axles out and use shop manual or u tube university to help you through.
__________________
"Some Days Chickens And Some Days Feathers" Dale XNGH ECV Sam Brannan 1004 R.I.P. 67ChevyRedneck R.I.P. Grumpy Old Man |
|
|
|
|
Yesterday, 10:21 PM
|
#8 |
|
Senior Member
Join Date: Sep 2007
Location: Albuquerque NM
Posts: 7,840
|
Re: 3/4 ton rear diff help
72c20custom camper. Any idea what size this nut is so I can go buy the socket?
__________________
1967custom |
|
|
|
|
Yesterday, 10:49 PM
|
#9 |
|
Senior Member
Join Date: Mar 2015
Location: washington
Posts: 2,183
|
Re: 3/4 ton rear diff help
They make stamped steel sockets for this size nut.
Just measure it across the flats for the size. |
|
|
|
|
Yesterday, 10:58 PM
|
#10 |
|
At the body shop.
Join Date: Aug 2009
Location: Land of fruits and nuts.
Posts: 5,160
|
Re: 3/4 ton rear diff help
Hammer and a chisel will work as well.
__________________
" That didnt make it any newer " " Dont antique the equipment " |
|
|
|
|
Yesterday, 11:59 PM
|
#11 |
|
Who Changed This?
Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,165
|
Re: 3/4 ton rear diff help
To get it apart, just push the locking tang away from the nut, and use #460 Channel Locks or similar to remove the outer nut. Then slide the locking washer off and unscrew the inner nut. There's a spec for end play in the service manual, but I've installed many of these over the years by feel, without any failures.
__________________
~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA |
|
|
|
|
Today, 08:29 AM
|
#12 | |
|
Registered User
Join Date: Jul 2018
Location: Catskill Mountains,NY
Posts: 8,225
|
Re: 3/4 ton rear diff help
Quote:
__________________
Mark 72 c20 custom camper Husky edition, 66 SS396 Chevelle 1964 Hawk, 63 Avanti,62 lark 1969 AMX , 1968 c20 stepside ,85 K20 1977 Suburban sold 68 anniversary. |
|
|
|
|
|
Today, 08:57 AM
|
#13 |
|
Proprietor of Dale's Corner
Join Date: Nov 2012
Location: Vacaville , CA
Posts: 15,881
|
Re: 3/4 ton rear diff help
I have the welded socket. All the ways mentioned will work fine.
__________________
"Some Days Chickens And Some Days Feathers" Dale XNGH ECV Sam Brannan 1004 R.I.P. 67ChevyRedneck R.I.P. Grumpy Old Man |
|
|
|
|
| Bookmarks |
|
|
Linear Mode
