Anyone replace the shifter seal ina t350 tranny? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Paul M · 05-11-2006, 02:22 PM

mine seems to be leaking a bit to much for my liking there.any insights as to procedures and problems associated with it would be appreciated.i included a pic of the shifter and you can see the fluid..thx for your help..paul

BLACK AND BLUE 67-72 · 05-11-2006, 02:53 PM

It takes a National seal #8792s. And KD Tools makes a very handy tool to remove and install it #2393.

Paul M · 05-11-2006, 03:00 PM

ahh thx for the quick reply...couple questions before i dig into this...do i need to drop the pan?..or is it removable from outside?...thx again paul

tcoop68 · 05-11-2006, 10:50 PM

No,you won't have to remove your pan,just take off your linkage I got my tool from mac it will screw right into the old seal and you will be able to pull the old seal right out.I use a 1/2" socket to drive the new one in so you wont damage the new one.Good luck. tcoop68

Green Machine · 05-11-2006, 11:15 PM

A small thin and sharp screwdriver can be tapped through the metal part of the seal and pryed out that way, just be sure not to score either the case or the shaft, or it will still leak.

72armyswbtruck · 05-12-2006, 03:51 AM

Man I love this site, more and more knowledge everday, better watch out or my Head will explode!!!

krue · 05-12-2006, 04:02 AM

I bought the tool, but still wound up dropping the pan and driving it out from the backside. Wasn't that big a deal with the help of some guys on here.

Orange · 05-12-2006, 10:06 AM

Quote:

Originally Posted by 72armyswbtruck

Man I love this site, more and more knowledge everday, better watch out or my Head will explode!!!

NO JOKE!

Man - I was fretting that my seal was leaking, and wondering what to do. NOW I KNOW!

WOOHOO!

Thanks for posting this.

64fleetside · 05-12-2006, 03:34 PM

take a small sheetmetal screw & drive it into the metal part of the seal-stay away from the sides. then pry seal out using screwdriver under the head of the screw-on some stubborn or large seals you may have to screw both sides. brian

Tx Firefighter · 05-13-2006, 11:44 AM

The KD tool is under 20 bucks, and that's both remover and installer in one package. Personally, I wouldn't risk a scratch or gouge on the shaft by using another method to save the 20 bucks. If you do scratch the shaft, it will leak from now on, no matter whether seal is new or not.

Orange · 05-13-2006, 09:50 PM

Quote:

Originally Posted by BLACK AND BLUE 67-72

And KD Tools makes a very handy tool to remove and install it #2393.

Not sure which is cheaper on shipping, but a quick search and these were the cheapest two I found online for you internet buyers.
http://www.thetoolwarehouse.net/shop/KD-2393.html
http://search.cartserver.com/search/...ords=KD%202393

05-11-2006, 02:22 PM	#1
Paul M Junior Member Join Date: Jun 2000 Location: Oakridge, Oregon Posts: 138	Anyone replace the shifter seal ina t350 tranny? mine seems to be leaking a bit to much for my liking there.any insights as to procedures and problems associated with it would be appreciated.i included a pic of the shifter and you can see the fluid..thx for your help..paul Attached Images

05-11-2006, 03:00 PM	#3
Paul M Junior Member Join Date: Jun 2000 Location: Oakridge, Oregon Posts: 138	Re: Anyone replace the shifter seal ina t350 tranny? ahh thx for the quick reply...couple questions before i dig into this...do i need to drop the pan?..or is it removable from outside?...thx again paul

05-11-2006, 10:50 PM	#4
tcoop68 tcoop68 Join Date: Jan 2006 Location: Cushing Oklahoma Posts: 226	Re: Anyone replace the shifter seal ina t350 tranny? No,you won't have to remove your pan,just take off your linkage I got my tool from mac it will screw right into the old seal and you will be able to pull the old seal right out.I use a 1/2" socket to drive the new one in so you wont damage the new one.Good luck. tcoop68

05-11-2006, 11:15 PM	#5
Green Machine Senior Member Join Date: Jul 2004 Location: Estherville, Iowa Posts: 3,371	Re: Anyone replace the shifter seal ina t350 tranny? A small thin and sharp screwdriver can be tapped through the metal part of the seal and pryed out that way, just be sure not to score either the case or the shaft, or it will still leak. __________________ 1968 C10 307 3spd Long Fleet ------ http://67-72chevytrucks.com/vboard/s...d.php?t=201103 1970 C10 305 Super T10 Long Fleet --- http://67-72chevytrucks.com/vboard/s...d.php?t=202285 1971 C20 383 TH350 Dana Posi ----- http://67-72chevytrucks.com/vboard/s...d.php?t=206894 2001 GMC Sierra 1500 C3 6.0

05-12-2006, 03:51 AM	#6
72armyswbtruck Registered User Join Date: Feb 2004 Location: Idaho Posts: 4,033	Re: Anyone replace the shifter seal ina t350 tranny? Man I love this site, more and more knowledge everday, better watch out or my Head will explode!!! __________________ "Remember, They can Kill You, but they can't eat You, That's against the law!!!!!!!!!"

05-11-2006, 02:53 PM	#2
BLACK AND BLUE 67-72 Firefighter Join Date: Feb 2001 Location: Yellville, Ar, USA Posts: 1,943	Re: Anyone replace the shifter seal ina t350 tranny? It takes a National seal #8792s. And KD Tools makes a very handy tool to remove and install it #2393. __________________ '72 Chevy SWB 350 Auto '67 GMC LWB 350 4 speed '70 Chevy 4x4 Stepside 350 Auto Yellville, Ar. USA

05-12-2006, 04:02 AM	#7
krue Designated A-hole! Join Date: Mar 2003 Location: South Mississippi Posts: 36,448	Re: Anyone replace the shifter seal ina t350 tranny? I bought the tool, but still wound up dropping the pan and driving it out from the backside. Wasn't that big a deal with the help of some guys on here. __________________ "If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck"

05-12-2006, 03:34 PM	#9
64fleetside Registered User Join Date: Apr 2004 Location: arkieland Posts: 1,070	Re: Anyone replace the shifter seal ina t350 tranny? take a small sheetmetal screw & drive it into the metal part of the seal-stay away from the sides. then pry seal out using screwdriver under the head of the screw-on some stubborn or large seals you may have to screw both sides. brian

05-13-2006, 11:44 AM	#10
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Re: Anyone replace the shifter seal ina t350 tranny? The KD tool is under 20 bucks, and that's both remover and installer in one package. Personally, I wouldn't risk a scratch or gouge on the shaft by using another method to save the 20 bucks. If you do scratch the shaft, it will leak from now on, no matter whether seal is new or not. __________________ I'm on the Instagram- @Gearhead_Kevin



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