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Drivetrain Tech General discussion of drivetrain for the Ford Ranger.

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  #26  
Old 05-25-2010
RazorsEDGE's Avatar
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I've used RTV several times when doing diffs and never had any problems with it leaking. Just make sure you loop all the way around all the mounting holes to get a good seal. I'm also impatient and have never let mine sit more than 10 minutes before filling it with fluid and I've had no problems.
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  #27  
Old 05-25-2010
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i think the biggest problem with sealing diffs is ppl rushing through it and not waiting for the sealant to fully do its jobs (seal)... i personally am guilty of this a couple times.. you just gotta be patient and let the stuff seal it up
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  #28  
Old 05-25-2010
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Quote:
Originally Posted by Reddog99 View Post
You don't tell us what year your truck is...
Yes, I did. Read the fist post in this thread.


Quote:
Originally Posted by Reddog99 View Post
Cleanliness is #1. If any oily film exists, the RTV won't be able to adhere to the sealing surfaces, so clean them perfectly with elec. contact cleaner, alcohol, or some such solvent. No oil allowed! Do whatever necessary to maintain the cleanliness.
Ya know what, I do specifically remember trying to stop the gear oil on the very bottom of the diff from leaking out over the edge, while the cover was off. Maybe I didn't let it drain enough, and some oil got onto the mating surface/RTV before all was set an well.

This time, I'm going to drain everything and clean everything so thoroughly that I could eat off the inside of the diff box.

I'm also not going to use a cardboard gasket this time. RTV only. The stuff I have does specifically say "gasket maker", however, I don't know if it is made to resist gear oil.

There's only one way to find out, and I've got a 5 day weekend, starting on Thursday. I'll take pics this time and update what happens.
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  #29  
Old 06-04-2010
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OOOOkkkk... not to dig up dead threads, however, I actually managed to find time to replace the cover gasket AND the pinion seal all in the same day.

The new cover looks kinda redneckish....



BUT, it doesn't really matter because the pinion seal leak is stopped and bone dry (for now?)

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