martindc1 Posted February 7, 2005 Report Share Posted February 7, 2005 Ha! I am in the process of rebuilding my rear-end and installing some 4.10s. I just installed the pinion the other night after several trials of putting it all in minus crush sleeve and checking wear pattern to shim the pinion. The crush sleeve was a bastard. I ended up laying underneath the car and holding the wrench on and checking preload while my dad turned the wrench with his foot. And we were using a 3/4" drive ratchet that was 1.5 feet long. It takes about 160 ft/lbs to crush a crush sleeve so we were using what, 120 lbs. of force? Hopefully tomorrow I will get the carrier put in and have the proper backlash. I will update soon. Quote Link to comment Share on other sites More sharing options...
stolen 5.0 Posted February 7, 2005 Report Share Posted February 7, 2005 uh, it takes like 600 ft lbs to crush a crush collar. i did many sets of gears in 8.8 mustangs. better make sure it's crushed all the way or you could end up having some play after awhile Quote Link to comment Share on other sites More sharing options...
Tinman Posted February 7, 2005 Report Share Posted February 7, 2005 Crush sleeves are a PITA and shouldn't be used in performance rears. Next time or if it's not to late, use a solid pinion spacer. A crush sleeve can actually crush more under hard launches and cause premature pinion bearing wear/failure. Quote Link to comment Share on other sites More sharing options...
martindc1 Posted February 7, 2005 Author Report Share Posted February 7, 2005 Originally posted by Stolen 5.0: uh, it takes like 600 ft lbs to crush a crush collar. i did many sets of gears in 8.8 mustangs. better make sure it's crushed all the way or you could end up having some play after awhile I was just going by what a shop manual said. 600 ft/lbs sounds like an awful lot of torque, you'd need like a 6 foot long wrench to turn that. But the pinion is in there the way its supposed to be, I checked things out several times. Crush sleeves are a PITA and shouldn't be used in performance rears. Next time or if it's not to late, use a solid pinion spacer. A crush sleeve can actually crush more under hard launches and cause premature pinion bearing wear/failure. I have heard that now that you mention it, I don't think I will have to worry about that though, I don't think my car is powerful enough to do it and I don't think street tires or drag radials would hook up good enough. I think I would break an axle before crushing the crush sleeve further. Quote Link to comment Share on other sites More sharing options...
Doug1647545489 Posted February 7, 2005 Report Share Posted February 7, 2005 I've done about 5 rear ends now. Took about 300 ft lbs to crush the crush sleeve. Just used a 1/2 drive break bar with a cheater bar on the end and a yoke holder. Although the rear end was out of the car and made it a lot easier. YOu also don't want to over crush it either. Quote Link to comment Share on other sites More sharing options...
martindc1 Posted February 8, 2005 Author Report Share Posted February 8, 2005 I have approx. 10 in/lbs. on the pinion bearing smile.gif Quote Link to comment Share on other sites More sharing options...
OGRE Posted February 8, 2005 Report Share Posted February 8, 2005 Originally posted by Tinman: Crush sleeves are a PITA and shouldn't be used in performance rears. Next time or if it's not to late, use a solid pinion spacer. A crush sleeve can actually crush more under hard launches and cause premature pinion bearing wear/failure. wear can i get this solid pinion spacer you speak of, and how reliable is it on the street? Quote Link to comment Share on other sites More sharing options...
Doug1647545489 Posted February 8, 2005 Report Share Posted February 8, 2005 jegs Quote Link to comment Share on other sites More sharing options...
stolen 5.0 Posted February 8, 2005 Report Share Posted February 8, 2005 i don't think u need a solid spacer unless u your run a strictly drag car. my .02 Quote Link to comment Share on other sites More sharing options...
Tinman Posted February 8, 2005 Report Share Posted February 8, 2005 Originally posted by Shrek: wear can i get this solid pinion spacer you speak of, and how reliable is it on the street? Like Doug said, Jeg's has them. As far as reliability, well let's just say the only reason to use a crush sleeve is to make it quicker to assemble. In your case, I would not disassemble the rear just to put one in, wait till you do a gear change, then upgrade. Quote Link to comment Share on other sites More sharing options...
Clifford Automotive Posted February 11, 2005 Report Share Posted February 11, 2005 the collar needs to be crushed at whatever ft.lbs it says to be crushed at. i personnaly wouldnt trust just a breaker bar. you need an impact to do it. then back it off and set your proper torque on the nut. Quote Link to comment Share on other sites More sharing options...
Doug1647545489 Posted February 11, 2005 Report Share Posted February 11, 2005 Originally posted by Faster than Yours: . you need an impact to do it. then back it off and set your proper torque on the nut.this is not the right way to do it. Quote Link to comment Share on other sites More sharing options...
Clifford Automotive Posted February 14, 2005 Report Share Posted February 14, 2005 Originally posted by Doug: this is not the right way to do it. crush the collar with an impact. back it off. set the torque with a torque wrench to the proper spec. this is not? hmmm...ok then what is? Quote Link to comment Share on other sites More sharing options...
el aguila Posted February 14, 2005 Report Share Posted February 14, 2005 Originally posted by Faster than Yours: crush the collar with an impact. back it off. set the torque with a torque wrench to the proper spec. this is not? hmmm...ok then what is? Crush sleeve to achieve proper pinion bearing turning preload with in lb torque wrench. Quote Link to comment Share on other sites More sharing options...
SPLN SUX Posted February 14, 2005 Report Share Posted February 14, 2005 shoulda gone FWD... JK, RWD is much better Quote Link to comment Share on other sites More sharing options...
Guest TGrant Posted February 14, 2005 Report Share Posted February 14, 2005 Originally posted by Faster than Yours: crush the collar with an impact. back it off. set the torque with a torque wrench to the proper spec. this is not? hmmm...ok then what is? that defeats the whole purpose of a crush sleeve Quote Link to comment Share on other sites More sharing options...
martindc1 Posted February 15, 2005 Author Report Share Posted February 15, 2005 You have to work your way up to the correct preload. If you back the nut off then the crush collar is crushed beyond where the preload would be set at. And one other thing correct bearing preload is in in.lbs not ft.lbs. Quote Link to comment Share on other sites More sharing options...
martindc1 Posted February 15, 2005 Author Report Share Posted February 15, 2005 One other thing, with a solid pinion spacer do you have to file it to the right length so that bearing preload is correct? Quote Link to comment Share on other sites More sharing options...
stolen 5.0 Posted February 15, 2005 Report Share Posted February 15, 2005 Originally posted by Bill: One other thing, with a solid pinion spacer do you have to file it to the right length so that bearing preload is correct?u get shims to set it right, another pain in the ass thing to shim Quote Link to comment Share on other sites More sharing options...
martindc1 Posted February 16, 2005 Author Report Share Posted February 16, 2005 Wow so between the pinion shim and the spacer you probably have to put the pinion in, check it, and pull it out like 20 times. Quote Link to comment Share on other sites More sharing options...
Tinman Posted February 16, 2005 Report Share Posted February 16, 2005 Originally posted by Bill: Wow so between the pinion shim and the spacer you probably have to put the pinion in, check it, and pull it out like 20 times. I usually get it in 3 or 4 times, it's not a big hassle and well worth the extra time/effort. Quote Link to comment Share on other sites More sharing options...
OGRE Posted February 17, 2005 Report Share Posted February 17, 2005 Originally posted by Tinman: Like Doug said, Jeg's has them. As far as reliability, well let's just say the only reason to use a crush sleeve is to make it quicker to assemble. In your case, I would not disassemble the rear just to put one in, wait till you do a gear change, then upgrade. rebuilding it, keeping the carrier and axles, replacing all the bearings, and gear. I don't want to dig into this thing again unless to change the gear or rebuild the t-lok. And niether of these things should happen any time soon. Quote Link to comment Share on other sites More sharing options...
martindc1 Posted February 17, 2005 Author Report Share Posted February 17, 2005 Originally posted by Tinman: I usually get it in 3 or 4 times, it's not a big hassle and well worth the extra time/effort. Since how much you tighten the pinion nut is no longer dependant on bearing preload, how much torque do you put on the nut when you tighten it? Quote Link to comment Share on other sites More sharing options...
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