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Re: Crush sleeve usage on a pinion yoke 489 case [Re: JohnRR] #1891725
08/14/15 11:15 AM
08/14/15 11:15 AM
Joined: Mar 2015
Posts: 65
Louisiana
J
JL2 Offline OP
member
JL2  Offline OP
member
J

Joined: Mar 2015
Posts: 65
Louisiana
The output shaft on this 727 is larger than the 904 that I pulled out so I figured that since I need to change the slip yoke, I may as well go stronger all the way.

Re: Crush sleeve usage on a pinion yoke 489 case [Re: JL2] #1891881
08/14/15 04:03 PM
08/14/15 04:03 PM
Joined: Jan 2003
Posts: 28,078
Irving, TX
feets Offline
Senior Management
feets  Offline
Senior Management

Joined: Jan 2003
Posts: 28,078
Irving, TX
If you do replace the crush sleeve be aware that they sometimes take a disturbing amount of torque to begin crushing. Once they begin moving it gets much easier to do.

The last one I did was ugly. Pneumatics wouldn't touch it. I'm sure you could have done it with an industrial 3/4" drive but I don't have one.
The torque required was bending my steel table. I had to put a jack under the table mounted vise, clamp the yoke in the vise, put a 4' long black pipe over the ratchet handle, and test the lifetime warranty on the tools. I had been pulling hard on the pipe with no results. Then, I cleared the floor behind me (landing zone if something broke and I went flying) and laid into it HARD. It went but wasn't happy about it.

https://www.youtube.com/watch?v=8T8ZG5DKsi0


We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind.
- Stu Harmon
Re: Crush sleeve usage on a pinion yoke 489 case [Re: JL2] #1892155
08/14/15 11:49 PM
08/14/15 11:49 PM
Joined: Jul 2007
Posts: 863
Pinelands , NJ
J
joelson6 Offline
super stock
joelson6  Offline
super stock
J

Joined: Jul 2007
Posts: 863
Pinelands , NJ
that's crezy

Re: Crush sleeve usage on a pinion yoke 489 case [Re: joelson6] #1892160
08/15/15 12:00 AM
08/15/15 12:00 AM
Joined: Nov 2007
Posts: 21,855
Kirkland, Washington
Pacnorthcuda Offline
Too Many Posts
Pacnorthcuda  Offline
Too Many Posts

Joined: Nov 2007
Posts: 21,855
Kirkland, Washington
Originally Posted By joelson6
that's crezy


Well maybe, but it is what it is, and I agree about getting the sleeve to begin its crush can be a task. I used a 4 foot cheater and a MAJOR vise at work to get the job done.

Would never do it again, solid spacer only if dealing with a 489.

Re: Crush sleeve usage on a pinion yoke 489 case [Re: feets] #1892164
08/15/15 12:03 AM
08/15/15 12:03 AM
Joined: Nov 2004
Posts: 25,050
Texas
GoodysGotaCuda Offline
5.7L Hemi, 6spd
GoodysGotaCuda  Offline
5.7L Hemi, 6spd

Joined: Nov 2004
Posts: 25,050
Texas
Originally Posted By feets
If you do replace the crush sleeve be aware that they sometimes take a disturbing amount of torque to begin crushing. Once they begin moving it gets much easier to do.

The last one I did was ugly. Pneumatics wouldn't touch it. I'm sure you could have done it with an industrial 3/4" drive but I don't have one.
The torque required was bending my steel table. I had to put a jack under the table mounted vise, clamp the yoke in the vise, put a 4' long black pipe over the ratchet handle, and test the lifetime warranty on the tools. I had been pulling hard on the pipe with no results. Then, I cleared the floor behind me (landing zone if something broke and I went flying) and laid into it HARD. It went but wasn't happy about it.

https://www.youtube.com/watch?v=8T8ZG5DKsi0



I have a 3/4" HF ratchet just for that when I was doing Jeep axles all of the time. Boy does that ratchet make all the difference...


1972 Barracuda - 5.7L Hemi, T56 Magnum 6spd - https://www.facebook.com/GoodysGotaHemi
2020 RAM 1500
[img]https://i.imgur.com/v9yezP9.jpg[/img]
Re: Crush sleeve usage on a pinion yoke 489 case [Re: JL2] #1892721
08/16/15 12:38 AM
08/16/15 12:38 AM
Joined: Jan 2003
Posts: 6,840
The Swamp
S
Sixpak Offline
master
Sixpak  Offline
master
S

Joined: Jan 2003
Posts: 6,840
The Swamp
If you are going to go through the trouble of having to disassemble the whole pig just to replace the crush sleeve then replace it with the solid tapered spacer from ratech or mancini and be done with it. They usually come with the small shims so you can dial in the preload on the pinion bearing.

Re: Crush sleeve usage on a pinion yoke 489 case [Re: Sixpak] #1893597
08/17/15 03:14 PM
08/17/15 03:14 PM
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
R
RapidRobert Offline
Circle Track
RapidRobert  Offline
Circle Track
R

Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
I missed the obvious that with the 727 being longer you will have to have the shaft shortened/balanced. I'd get the front yoke (& a conversion ujoint if the yoke you locate is a 7290), correctly measure the C to C dimention to give to them (rear loaded/car reasonably level) then shaft butted & subtract 3/4". spicer precision neapco are reportedly good ujoint brands with spicer being my #1 choice. there's no downside to the conversion joint. Ma's super stocks ran fast in the quarter in the 60's with 7260's/no issues & it being half an half ain't a problem


live every 24 hour block of time like it's your last day on earth
Re: Crush sleeve usage on a pinion yoke 489 case [Re: RapidRobert] #1894049
08/17/15 11:54 PM
08/17/15 11:54 PM
Joined: Jun 2005
Posts: 5,115
Western Md.
skicker Offline
"The Champ"
skicker  Offline
"The Champ"

Joined: Jun 2005
Posts: 5,115
Western Md.
Why does everything always have to be the hard way??? shruggy
If you took out a 904 that means its a small block...in stock form their not notorious for being torque monsters. twocents
Get the 727 yoke for the small u joint...set it 7/8th's of an inch from bottoming out in the trans...measure and order a new shaft with small joints on both ends. up
Any 8 3/4" pig is kind of like a sleeping dog...don't F with it...especially when your not sure what your doing. tsk


...FAFO...
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