im getting tired of this... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

bitchin85 · 05-16-2010, 01:25 AM

so my luck is terrible.. my tranny started leaking a while back. first just a drop or two then puddles.. so i changed the trans pan gasket and filter and rear output shaft.. twice. still leaked. turns out the tcs sensor or something like that was broke and leaking too. i got it plugged and everything was fine and dandy.. for about a week till i looked under my truck this morning and saw a 3x3 foot puddle of tranny fluid in my driveway... the fluids coming out of the end of the yoke.. ive never seen a leak like this before.. the u-joint is covered in fluid and the fluid is just running out of the center of the yoke going into the tailstock.. does anyone know how to fix this so i can get this rig back on the road? whatever i need to buy/do and if its deep or just a quick fix? thanks in advance guys

cableguy0 · 05-16-2010, 02:08 AM

The best most permanent fix is to pull the yoke. remove it from the driveshaft and weld the hole shut. i think theres an o ring on the tail shaft with that style yoke. its a small hole just weld it shut.

LONGHAIR · 05-16-2010, 08:30 AM

I'm pretty sure that the hole is there for a reason. It allows the yoke to slip on the tail shaft with out greating pressure or vacuum as the space inside grows/shrinks during it's travel.

Edgel82c10 · 05-16-2010, 09:23 AM

http://www.73-87.com/7387garage/drivetrain/yokeleak.htm
Awesome write up on this.

bitchin85 · 05-16-2010, 04:25 PM

I have acouple driveshafts layingaround.. Will itreally hurt anything if I weld it up for now until I feel liketearing the tailstock off to change the seal? I need itfor a dd for a few more weeks before I'm building the motor. Ill problychange that thentoo.

cableguy0 · 05-16-2010, 04:40 PM

A lot of yokes dont have it though. And I have never seen an issue with the ones that dont have the yoke with the hole in it. Is this a 2 piece or 1 piece driveshaft? Does it have a slip yoke on the back part of the shaft? If its a 2 piece shaft with carrier bearing. The yoke cannot move in or out of the transmission anyhow so pressure buildup wouldnt be an issue.

bitchin85 · 05-16-2010, 09:36 PM

it dont have a slip yoke on the back part. only going into the trans of course.. its a long bedwith a one peice. o ya its 2wd. i took it out and welded it up, and it stopped leaking. i found a rebuilt th350 with a ****f kit and a stall convertor with the lockout torque for 500 bucks.. its a co-workers so ill probly snatch that up when i get my vortec build done with.. but is it or is it not bad on the trans like this? everything seemed fine when i drove it..

gmclowsierra · 05-18-2010, 09:23 PM

i was told to jb weld mine shut. that was 10000 miles ago

bitchin85 · 05-18-2010, 09:47 PM

good to know... i just got a welding rod down the center of the yoke and welded her shut. stopped leaking but i wasnt sure if it would hurt. good to know it wont hurt

05-16-2010, 01:25 AM	#1
bitchin85 Registered User Join Date: Aug 2009 Location: Lambertville MI Posts: 962	im getting tired of this... so my luck is terrible.. my tranny started leaking a while back. first just a drop or two then puddles.. so i changed the trans pan gasket and filter and rear output shaft.. twice. still leaked. turns out the tcs sensor or something like that was broke and leaking too. i got it plugged and everything was fine and dandy.. for about a week till i looked under my truck this morning and saw a 3x3 foot puddle of tranny fluid in my driveway... the fluids coming out of the end of the yoke.. ive never seen a leak like this before.. the u-joint is covered in fluid and the fluid is just running out of the center of the yoke going into the tailstock.. does anyone know how to fix this so i can get this rig back on the road? whatever i need to buy/do and if its deep or just a quick fix? thanks in advance guys __________________ "I'll keep my guns, money, and freedom. You can keep the "change"

05-16-2010, 02:08 AM	#2
cableguy0 Senior Member Join Date: Apr 2000 Location: Delta,Pa Posts: 14,948	Re: im getting tired of this... The best most permanent fix is to pull the yoke. remove it from the driveshaft and weld the hole shut. i think theres an o ring on the tail shaft with that style yoke. its a small hole just weld it shut. __________________ Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member.

05-16-2010, 09:23 AM	#4
Edgel82c10 Registered User Join Date: Mar 2010 Location: Kentucky Posts: 32	Re: im getting tired of this... http://www.73-87.com/7387garage/drivetrain/yokeleak.htm Awesome write up on this.

05-16-2010, 04:25 PM	#5
bitchin85 Registered User Join Date: Aug 2009 Location: Lambertville MI Posts: 962	Re: im getting tired of this... I have acouple driveshafts layingaround.. Will itreally hurt anything if I weld it up for now until I feel liketearing the tailstock off to change the seal? I need itfor a dd for a few more weeks before I'm building the motor. Ill problychange that thentoo. __________________ "I'll keep my guns, money, and freedom. You can keep the "change"

05-16-2010, 04:40 PM	#6
cableguy0 Senior Member Join Date: Apr 2000 Location: Delta,Pa Posts: 14,948	Re: im getting tired of this... A lot of yokes dont have it though. And I have never seen an issue with the ones that dont have the yoke with the hole in it. Is this a 2 piece or 1 piece driveshaft? Does it have a slip yoke on the back part of the shaft? If its a 2 piece shaft with carrier bearing. The yoke cannot move in or out of the transmission anyhow so pressure buildup wouldnt be an issue. __________________ Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member.

05-16-2010, 09:36 PM	#7
bitchin85 Registered User Join Date: Aug 2009 Location: Lambertville MI Posts: 962	Re: im getting tired of this... it dont have a slip yoke on the back part. only going into the trans of course.. its a long bedwith a one peice. o ya its 2wd. i took it out and welded it up, and it stopped leaking. i found a rebuilt th350 with a ****f kit and a stall convertor with the lockout torque for 500 bucks.. its a co-workers so ill probly snatch that up when i get my vortec build done with.. but is it or is it not bad on the trans like this? everything seemed fine when i drove it.. __________________ "I'll keep my guns, money, and freedom. You can keep the "change"

05-18-2010, 09:23 PM	#8
gmclowsierra Registered User Join Date: Mar 2008 Location: williamsport,pa Posts: 329	Re: im getting tired of this... i was told to jb weld mine shut. that was 10000 miles ago

05-18-2010, 09:47 PM	#9
bitchin85 Registered User Join Date: Aug 2009 Location: Lambertville MI Posts: 962	Re: im getting tired of this... good to know... i just got a welding rod down the center of the yoke and welded her shut. stopped leaking but i wasnt sure if it would hurt. good to know it wont hurt __________________ "I'll keep my guns, money, and freedom. You can keep the "change"



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