roosteracer

iTrader: (1)

i can't get the crush sleeve to crush. i'm using a impact wrench and it's still not crushing. do you think i need a higher impact? if i do how many pounds?

Orange99Z

iTrader: (25)

I've never gotten an impact to crush a crush sleeve. Usually I'll put a pipe wrench on the yoke and let it hit the floor or somewhere under the car, then get a breaker bar and a pipe to crush it.

8a8mfh

iTrader: (3)

My Matco 1/2" drive with 150 psi feeding it crushed a bunch. Thats holding the yoke with my hand too.

I've also used 3' breaker bars with a pipe wrench on the yoke.

Orange99Z

iTrader: (25)

I wish we had more air pressure.

chicane

PSI is your friend. You'll need 145ish PSI to lean on a new.

My IR2131 will split them in half at 175psi.

roosteracer

iTrader: (1)

thanks, i have to try that

roy

Using an impact to crush the crush sleeve will damage the pinion bearings.

tici

iTrader: (1)

a 4 ft bar to hold the yoke, another for the wrench
You can set the preload very easily and very precisely if you use such long bars.

chicane

Not necessarily...

Kenova

iTrader: (4)

Are you sure it's a crush sleeve and not a spacer? I'm sorry, I'm feelin' like an *** today and just couldn't resist.
I would think that using the long bars would give you a little more control over how much your sleeve is crushed.
Ken
Roosteracer> < me

LS1NOVA

iTrader: (12)

If an impact damages pinion bearings, I better get ready to rebuild about 50 of them Ive done with my impact. Air pressure is the key.

DynoDR

iTrader: (1)

Yeah...I have got probably a few hundred running around that are "impact crushed".

keliente

iTrader: (22)

No it won't.

roy

Guys I am not gonna get in a Pissing contest with ya . But you use a impact you will either over torque or under torque the crush sleeve. Depending on the rearend manufacturer you have a certain amount of torque that needs to be applied to get the proper crush on the crush sleeve. Which is checked by rotating the pinion, checking the torque to rotate the pinion in in.lbs.. Spacers are different if the thickness is spot on, impact won't hurt it . Won't catch me using impacts for assembling pinions. Besides with an impact you never know the real torque value. Disassembly no problem.


BTW for DynoDR and LS1Nova , I gave up counting the rebuilds in about 1980.

LS1NOVA

iTrader: (12)

Roy I understand where your coming from, but I dont just recklessly tighten it. Just a couple raps with the impact till in starts to drag, then turn it with the inch pound beam style torque wrench and keep tightening until around 20 inch pounds of turning force is required to turn it. Everybody has there own way, I just feel that the impact way is less work.

8a8mfh

iTrader: (3)

I did mine with an impact, shot for 20-25 inch pounds and ended up with 24 in lbs.

roy

Got it LS1Nova,
Answers are in the details and as you say everbody has their own way.

chicane

AKA..... finesse'.

Out of the few thousand differentials I have done, if it were in the chassis, it was done with an impact...... and some attention to detail. If it were a 'bench job' and the impact couldnt pull thru (like on some OE BMW and Nissan diff's or DANA 70/80's or 14" third's) they went into a 40Ton 2-stage press.

I normally use 14-16 rolling inlbs on used bearings and 30-34 rolling inlbs on new bearings with liberal assembley lube..... and the assembly lube has a lot to do with it as well.

DynoDR

iTrader: (1)

I know where you are coming from...I am just being honest. And there a probably more "big name" rebuilders that use an impact also. I know a couple that will admit to it. Like said earlier...You CAN ease up on it with a impact..I can keep it within a few inch lbs rotating tq. Which by the way is how I check it also. Not pissing just after reading it I thought some may take it that we meen just "hammer it up tight" . ALL of us do plenty bearing jobs because some one with an impact that doesn't know any better did a pinon seal job a few weeks ago!!!