BMW 2002 Project - Differential Refresh and installing the Crush Sleeve

[@frankortega9798]

Nice car! I think the idea is to measure the resistance of the pinon shaft before removing nut. Then when putting back together match the before resistance, 108 is the minimum it should be. I read it some where in the net. But yes very little detailed exact spec out there, surprisingly. I guess the don't fail that often.

[@waynesiebrecht3833]

Thanks for the comment. My nut was already loose... anyway, I was pointed in the right direction for the spec for the resistance on the pinion shaft... this is with no differential in place, MAX 300 +- 30 Ncm without seal, MAX 320 +- 30 Ncm with seal... this is MAX value and 300 Ncm is 2.2 Ft-Lbs. This very little and you need a small accurate torque wrench to measure these values.

[@vetlelangseth1859]

Hi! Thanks for providing knowledge! Would you please let me know where to buy sim rings and seals?

[@cf5914]

Are the output flanges just an interference fit? I had one kind of pop out on my LSD and it freaked me out.

[@waynesiebrecht3833]

There is a spring clip that keeps them seated. you have to smack it just right and it compresses for removal. This is common on splined shafts now. There is not too much load in that direction and there is no place for it to go when the half shaft is in place. I did make sure the spring clip was right and smack them back in... pulled on them a bit to check. This is an e21 320i differential.... the older 2002 differentials have a bolt that holds them in.

[@nicolaasalbertse3473]

Hi, where did you buy the crush sleeve?

[@waynesiebrecht3833]

BMW part# 33 12 1 200 259 or here is a link on Amazon amzn.to/3r6cIkF They are easy to find for now and were used on Z3 also

[@nicolaasalbertse3473]

@@waynesiebrecht3833 Thanks for the info, ok but my Bmw is the 318 E46. I guess its a different crushing sleeve.

[@waynesiebrecht3833]

different, but works the same way. Just do a google search for it or look it up on realoem.com for the exact model @@nicolaasalbertse3473

[@nicolaasalbertse3473]

@@waynesiebrecht3833 Thank you for the tip! ;-)