Help - another transmission leak

[4tiresngas]

Okay, I have been trying to clean up the underside for a little while now. I finally figured out where the transmission was leaking from. It leaks from around the dip stick. I got a brand new dip stick w/ new o-ring and installed it. It still leaks there.

So, I need to figure out where to get the grommet that is actually in the transmission housing where the dip stick goes in. Anybody know where I can get a new one..preferably online, since it's 45 miles to the nearest part store.

Thanks for any help.

[truckdude239]

umm last time i had that problem i use blue rtv and gooped the o ring in it and soved my problem just neve could get the dip stick tube back out

[Ron]

I just replaced my dip stick seal (the one in the tranny). Their are 2 types, the old style (mine) is just an "O" ring. The new style is a rubber grommet. This fixed that leak however, I soon found that the shifter shaft is leaking also.

[4tiresngas]

Ron, where did you find the dip stick seal at?

[Longhorn Man]

Dan, Barstow doesn't have any parts stores?
I almost re-upped to go there.

Kinda wish I did.
kinda glad I didn't.

[4tiresngas]

Longhorn Man, it is 35 miles to get to I-15 and then it's another 10 miles to get to the AutoZone and Kragen. I try to only go when I need several things...that's also where the closest Wal-mart (not even a Super Wal-Mart). Gas just cost too much. Believe me, I use the internet for almost everything out here.

[Longhorn Man]

I remember Ft Irwin road being long...but didn't remember it being that long.
I guess there isn't much on post for that kind of stuff either huh.
Man, that's a 1/2 tank of gas just to get to the parts store.

[4tiresngas]

Fort Irwin road is long and in disrepair...the State of California should be ashamed. Five people have died on that road just since October.

[Tx Firefighter]

Do you have an aftermarket chrome dipstick and tube?

I've never been able to keep them from leaking. Swapping in a GM factory dipstick and tube always fixes the problem.

[Ron]

Originally Posted by 4tiresngas

Ron, where did you find the dip stick seal at?

Got it at the parts store for $1.00. I bought both types as I wasn't sure which seal I had. I still have the grommet seal on the shelf. If this is the type you need let me know and I'll send it to you. Ron (retired MSGT)

[FRENCHBLUE72]

I just installed 2 lakr dip sticks in 2 th350 trannys one in my wheeling truck and one in my 454 th400 2wd they do recomend to use some rtv and they are great no leaks as of yet and my wheeling truck has been flopped many times since the install..

[70c10]

These are the GM part numbers for the dipstick seals in case anybody is interested:
Transmission filler tube seal (top hat later style) - 1259475 (350 turbo)
Transmission filler tube seal (O-ring earlier style) - 6264902 (350 turbo)

[Ron]

Originally Posted by 70c10

These are the GM part numbers for the dipstick seals in case anybody is interested:
Transmission filler tube seal (top hat later style) - 1259475 (350 turbo)
Transmission filler tube seal (O-ring earlier style) - 6264902 (350 turbo)

Got the part # for the shift rod seal and the modulator? Thanks