T400 leaking at speedo gear housing - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Bill72BB · 06-15-2002, 12:03 PM

Is there a O ring or gasket , Looks simple enough to remove ?

Thanks

Bill

68 with 350 TPI · 06-15-2002, 12:08 PM

Yes there is a o-ring
And it is very easy to fix

O'l Buck · 06-15-2002, 01:08 PM

Easy to replace, just remove the clamp, pull the spedo gear out, and install new 'O' ring.

**MikeB** · 06-15-2002, 02:10 PM

Don't know if this appies to the TH400, but my 1969 TH350 had an older style without an o-ring. A trans shop sold me the new style with o-ring for prox $5. it hasn't leaked since.

Paul Clark · 06-15-2002, 03:46 PM

"Some" have 2 seals. The O-ring is obvious. The other seal is not.
I'd take the "bullet" with you to a tranny shop and ask them what you need.

06-15-2002, 12:03 PM	#1
Bill72BB Thats the Hillbilly way Join Date: Jul 2001 Location: Torrance,Ca Posts: 5,980	T400 leaking at speedo gear housing Is there a O ring or gasket , Looks simple enough to remove ? Thanks Bill __________________ BILL Torrance Calif 90504 Member DUF Club Member Old Farts Club 72 3/4ton Custom Camper BB402/400 trans Dynomax Cerama-coat headers , Hei distributor ,Edelbrock 1411 air,ps,pb,leafsprings ,98 chevy 60/40 seat,S10 shoulder belts tilt,3.54 Dana 60 rear. 16" Eagle wheels with LT265/75 16 tires,Gaylord Lid,H4 headlights with 100W relay conversion. " If I knew I was going to live this long I would have taken better care of myself " Marriage changes passion...suddenly you're in bed with a relative. A GUY'S PRAYER.... Lord, I pray for a nympho with huge boobs who owns a liquor store and likes to fish and hunt and has a Harley .Amen ,

06-15-2002, 12:08 PM	#2
68 with 350 TPI Registered User Join Date: May 2002 Location: Wingate NC Posts: 456	Yes there is a o-ring And it is very easy to fix __________________ Life is good with a 6-71 supercharged 355 in a 72 camaro

06-15-2002, 01:08 PM	#3
O'l Buck Recovering Truck Driver Join Date: Mar 2002 Location: Orleans, NE USA Posts: 1,883	Easy to replace, just remove the clamp, pull the spedo gear out, and install new 'O' ring. __________________ 67 K-20 350, SM465, Eaton rear, 4.56 no spin option 00 Dodge 2500 4x4, 24V cummins, 5 speed Chad South Central Nebraska

06-15-2002, 02:10 PM	#4
MikeB Senior Member Join Date: Jul 2000 Location: North Texas Posts: 3,572	Don't know if this appies to the TH400, but my 1969 TH350 had an older style without an o-ring. A trans shop sold me the new style with o-ring for prox $5. it hasn't leaked since. __________________ Mike 1969 C10 LWB -- owned for 35 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. 1982 C10 SWB -- sold 1981 C10 Silverado LWB -- sold, but wish I still had it! 1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then!

06-15-2002, 03:46 PM	#5
Paul Clark Registered User Join Date: Apr 2002 Location: Center Point, IA Posts: 502	"Some" have 2 seals. The O-ring is obvious. The other seal is not. I'd take the "bullet" with you to a tranny shop and ask them what you need.



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