np205 reseal, on vehicle! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**jeffahart** · 04-15-2019, 07:40 PM

Quote:

Originally Posted by 6768chevylover

I bit the bullet and removed my T case from the truck and have been resealing it. My question is will 90w gl4 oil be fine for this?

Yes use it for both. Gl4 it's better for the synchros in the transmission

J

**jeffahart** · 04-15-2019, 07:42 PM

Also make sure you use the gaskets no sealant when mounting the adapter to the T case and transmission. Those tolerances are very important

J

**jeffahart** · 04-15-2019, 07:47 PM

Another also. Some of the bolt holes on the PTO covers are through bolts. You might want to dab a little sealant on the threads. I think a couple bolts on the transmission side of the adapter are through bolts too. Just look at them all. I added a dab of thread sealant to a few of my bolts. I have no leaks, and I am happy.

J

04-15-2019, 07:42 PM	#2
jeffahart Senior Member Join Date: May 2012 Location: Scottsdale, AZ Posts: 1,910	Re: np205 reseal, on vehicle! Also make sure you use the gaskets no sealant when mounting the adapter to the T case and transmission. Those tolerances are very important J __________________ White K20

04-15-2019, 07:47 PM	#3
jeffahart Senior Member Join Date: May 2012 Location: Scottsdale, AZ Posts: 1,910	Re: np205 reseal, on vehicle! Another also. Some of the bolt holes on the PTO covers are through bolts. You might want to dab a little sealant on the threads. I think a couple bolts on the transmission side of the adapter are through bolts too. Just look at them all. I added a dab of thread sealant to a few of my bolts. I have no leaks, and I am happy. J __________________ White K20

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