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Go Back   Chevy and GMC Duramax Diesel Forum > Specialty Forums > Transmission Shop

Transmission Shop Discuss the Allison OEM, After Market, And the ZF-6 speed.

 

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Old 07-17-2009, 06:02 PM   eBay Motors  #11 (permalink)
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not at all, i changed the oil today also, at least it didnt end up on the floor too.
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Old 07-17-2009, 07:31 PM   eBay Motors  #12 (permalink)
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You need to use only the (preferably new) o-ring style gasket against a really clean mating surface; which will provide a positive compression seal. You cannot tighten a Mag-Hytec pan enough for the OEM style gasket to seal properly. If you use both gaskets the o-ring cannot work the way it was designed.

Maybe you have over-torqued the cap screws and have either distorted or bent the transmission pan. The torque spec for those cap screws is only 17-20 inch pounds (not foot pounds). If you honk down on them the pan will either leak or crack. You must use the washers that were supplied with the pan (or their equivalent) as well.

I found that if I use four long studs with nuts in the corner holes as locator pins that I can get the pan on/off in about 15 minutes by myself without even having to jack the truck up. Run the studs into any four corner holes finger tight, slip the pan over the studs, spin on the nuts a few threads, and let the pan hang. Then slide the pan up the studs and hold it up with one hand while you get one or two of the cap screws started. Just reverse the procedure to drop the pan (with no splash).
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Old 07-17-2009, 08:57 PM   eBay Motors  #13 (permalink)
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We installed mine last week and I did not use the oem gasket, just the buit in mag oring, and no leaks. Is this right?
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Old 08-27-2009, 04:41 AM   eBay Motors  #14 (permalink)
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Quote:
Originally Posted by delong_1 View Post
Has anyone else had problems with their deep pan? i have tried a new o ring from them and i just put a standard allison reusable gasket on and it is still leaking.

anyone have any info, or advice?

thanks Nate
Did you ever get this fixed. I just dropped my pan and what happens, it leaks.. hate to drop the pan again and lose $100 dollars of amsoil.
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Old 08-27-2009, 06:01 AM   eBay Motors  #15 (permalink)
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Might try a new o-ring style gasket.
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Old 08-27-2009, 06:52 PM   eBay Motors  #16 (permalink)
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i just reinstalled the o ring again because i didnt know what else to do. unbelievably it didnt leak and still hasnt. if you call mag hytec they will send you a new o ring for free.
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