2 piece driveline trouble - The 1947 - Present Chevrolet & GMC Truck Message Board Network

prg machine · 09-23-2009, 10:21 PM

I have had trouble all week diagnosing this and had the vehicle acting like brakes are dragging etc. vibration was starting.

I jacked it up and ran it in high gear and WOW!!! what a bunch of noise and driveline jittering around..............I thought the rear end was gonner!!!
I watched the area around the slip splines right behind the carrier bearing and noticed the most movement there. There was play in the rear u-joint. I turned it off and shook the shaft. The slip spline is shot also the rear joint.
Question is which way to go with this..............replace as stock or go one piece???????

I turned the rear axle over back and forth the best I could by hand and all is smooth. The stethescope had noises all the way out to the drums so I thought bad brakes???? then with the stethescope out of my ears I heard the clanging up by the slip spline.

extd56 · 09-23-2009, 11:00 PM

Is this a long or short bed? It sounds like you have a bad center carrier that needs to be replaced.

prg machine · 09-23-2009, 11:05 PM

Could be. I am pulling it tommorow with the front shaft and getting the works replaced. I can't believe how sudden these problems came on.................but the splines were worn when I put the truck back together and u-joints questionab;le.......I told myself the day would come and i think it's here.

airdale94 · 09-24-2009, 01:10 AM

If it's your K20 (sig) I would stick with the 2 piece. My slips splines were shot also. If it's more than a cruiser you could look into replacing the tubes with beefier ones also. I would take it to a reputable driveline builder.

prg machine · 09-25-2009, 10:16 PM

new 2 piece being built.............................with the upgraded carrier............can't do one piece due to the small yoke out of transfercase. would have to change it to bigger cross and mine is the course spline . The fine splines are easy to come up with.

The whole shebanfg will be around 385

prg machine · 10-02-2009, 11:58 AM

For the record: Upgraded to a 1 1/2 inch spline slip joint . 3 new joints 80,000 mile no grease heavy duty, new weld joint labor and balance was a total of $335.00.

Walker Driveline in Talent Oregon did the work.

The truck is better than ever!!

prg machine · 10-02-2009, 11:59 AM

That included a heavy duty carrier bearing also.

Longhorn Man · 10-02-2009, 04:40 PM

sweet.
Now you can ignore it for 10 - 30 years! (assuming the U-joints are sealed too)
I love parts that thrive on neglect.

prg machine · 10-02-2009, 06:54 PM

yes joints are sealed units.

**FRENCHBLUE72** · 10-02-2009, 08:07 PM

Walker driveline is pretty good I had them do the shafts in my yota..

09-23-2009, 10:21 PM	#1
prg machine Registered User Join Date: Jun 2007 Location: oregon Posts: 1,069	2 piece driveline trouble I have had trouble all week diagnosing this and had the vehicle acting like brakes are dragging etc. vibration was starting. I jacked it up and ran it in high gear and WOW!!! what a bunch of noise and driveline jittering around..............I thought the rear end was gonner!!! I watched the area around the slip splines right behind the carrier bearing and noticed the most movement there. There was play in the rear u-joint. I turned it off and shook the shaft. The slip spline is shot also the rear joint. Question is which way to go with this..............replace as stock or go one piece??????? I turned the rear axle over back and forth the best I could by hand and all is smooth. The stethescope had noises all the way out to the drums so I thought bad brakes???? then with the stethescope out of my ears I heard the clanging up by the slip spline. __________________ 69 K-20 cloned to a 67 with front clip and some other stuff. 383 .040 over Crane roller cam lifters and rockers ,1.6 intake ratio, Open chamber heads, 9.5-1 compression ratio, 2.02 intake valves , Edelbrock performer Air Gap manifold Carter AFB performer 750cfm, MSD ignition, SM465 NP205 4.10 gears:

09-23-2009, 11:00 PM	#2
extd56 Senior Member Join Date: Nov 2004 Location: Vacaville, CA Posts: 2,272	Re: 2 piece driveline trouble Is this a long or short bed? It sounds like you have a bad center carrier that needs to be replaced.

09-23-2009, 11:05 PM	#3
prg machine Registered User Join Date: Jun 2007 Location: oregon Posts: 1,069	Re: 2 piece driveline trouble Could be. I am pulling it tommorow with the front shaft and getting the works replaced. I can't believe how sudden these problems came on.................but the splines were worn when I put the truck back together and u-joints questionab;le.......I told myself the day would come and i think it's here. __________________ 69 K-20 cloned to a 67 with front clip and some other stuff. 383 .040 over Crane roller cam lifters and rockers ,1.6 intake ratio, Open chamber heads, 9.5-1 compression ratio, 2.02 intake valves , Edelbrock performer Air Gap manifold Carter AFB performer 750cfm, MSD ignition, SM465 NP205 4.10 gears:

09-24-2009, 01:10 AM	#4
airdale94 Registered User Join Date: Jan 2007 Location: Topeka,KS Posts: 778	Re: 2 piece driveline trouble If it's your K20 (sig) I would stick with the 2 piece. My slips splines were shot also. If it's more than a cruiser you could look into replacing the tubes with beefier ones also. I would take it to a reputable driveline builder. Last edited by airdale94; 09-24-2009 at 01:11 AM. Reason: add

09-25-2009, 10:16 PM	#5
prg machine Registered User Join Date: Jun 2007 Location: oregon Posts: 1,069	Re: 2 piece driveline trouble new 2 piece being built.............................with the upgraded carrier............can't do one piece due to the small yoke out of transfercase. would have to change it to bigger cross and mine is the course spline . The fine splines are easy to come up with. The whole shebanfg will be around 385 __________________ 69 K-20 cloned to a 67 with front clip and some other stuff. 383 .040 over Crane roller cam lifters and rockers ,1.6 intake ratio, Open chamber heads, 9.5-1 compression ratio, 2.02 intake valves , Edelbrock performer Air Gap manifold Carter AFB performer 750cfm, MSD ignition, SM465 NP205 4.10 gears:

10-02-2009, 11:58 AM	#6
prg machine Registered User Join Date: Jun 2007 Location: oregon Posts: 1,069	Re: 2 piece driveline trouble For the record: Upgraded to a 1 1/2 inch spline slip joint . 3 new joints 80,000 mile no grease heavy duty, new weld joint labor and balance was a total of $335.00. Walker Driveline in Talent Oregon did the work. The truck is better than ever!! __________________ 69 K-20 cloned to a 67 with front clip and some other stuff. 383 .040 over Crane roller cam lifters and rockers ,1.6 intake ratio, Open chamber heads, 9.5-1 compression ratio, 2.02 intake valves , Edelbrock performer Air Gap manifold Carter AFB performer 750cfm, MSD ignition, SM465 NP205 4.10 gears:

10-02-2009, 11:59 AM	#7
prg machine Registered User Join Date: Jun 2007 Location: oregon Posts: 1,069	Re: 2 piece driveline trouble That included a heavy duty carrier bearing also. __________________ 69 K-20 cloned to a 67 with front clip and some other stuff. 383 .040 over Crane roller cam lifters and rockers ,1.6 intake ratio, Open chamber heads, 9.5-1 compression ratio, 2.02 intake valves , Edelbrock performer Air Gap manifold Carter AFB performer 750cfm, MSD ignition, SM465 NP205 4.10 gears:

10-02-2009, 04:40 PM	#8
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: 2 piece driveline trouble sweet. Now you can ignore it for 10 - 30 years! (assuming the U-joints are sealed too) I love parts that thrive on neglect.

10-02-2009, 06:54 PM	#9
prg machine Registered User Join Date: Jun 2007 Location: oregon Posts: 1,069	Re: 2 piece driveline trouble yes joints are sealed units. __________________ 69 K-20 cloned to a 67 with front clip and some other stuff. 383 .040 over Crane roller cam lifters and rockers ,1.6 intake ratio, Open chamber heads, 9.5-1 compression ratio, 2.02 intake valves , Edelbrock performer Air Gap manifold Carter AFB performer 750cfm, MSD ignition, SM465 NP205 4.10 gears:

10-02-2009, 08:07 PM	#10
FRENCHBLUE72 PROJECT 7DEUCE Join Date: Dec 2002 Location: GRANTS PASS OR Posts: 21,604	Re: 2 piece driveline trouble Walker driveline is pretty good I had them do the shafts in my yota.. __________________ GO BIG GREEN GO DUCKS MEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P..



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