[DeTomaso] ZF gear oil

[Justin Greisberg]

Excellent point!  It wasnt leaking when i pulled it out, wired the ring gear, and made it all pretty.  Now, to change the output shaft seal (where the halfshafts attach), I assume I would have to remove the unit again, which I am not ready to do yet!!  Anyone know if it is possible to replace the seal while in the car??  I dont think so.  Justin
 



From: julian_kift at hotmail.com
To: justingreisberg at hotmail.com; detomaso at realbig.com
Subject: RE: [DeTomaso] ZF gear oil
Date: Wed, 6 Jul 2011 07:33:37 -0700





If the oozing has slowed down witth conventional 75W-90 I would postulate you have a bad input shaft seal and should replace it! 
 
Personally I would think 75W-140 too thick and viscous for the duty, more akin but not quite as bad as the old used car salesmans trick of sawdust.
 
Julian
 

> From: justingreisberg at hotmail.com
> To: detomaso at realbig.com
> Date: Wed, 6 Jul 2011 03:18:03 -0700
> Subject: [DeTomaso] ZF gear oil
> 
> 
> you might not want to buy synthetic redline gear oil if you have original seals in your ZF. the super fancy synthetic stuff caused my ZF to ooze through the output seal, dripping oil all over my beautifully detailed gear box. given that i am putting limited miles on my finished restoration, i just put in some old fashioned thick smelly 75-90 gear oil. And someone else told me i should have used 75-140 to minimize oozing. After a year of seeping after removing the expensive redline synthetic, the oozing has slowed down... justin 
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