carrier bearing...anyone else with this problem - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Ackattack · 10-17-2003, 08:06 PM

Basically what happens is the carrier bearing gets pushed forward as the bracket bends. This causes the front driveshaft to lift and the driveshaft to vibrate a little. I think the carrier bearing bracket is too weak, so I'm going to redesign my own.

Does anyone else have this problem? What did you do?

I think my bracket may have gotten broken/weakened when I dropped a drive shaft....I don't know for sure.

jhow66 · 10-17-2003, 08:18 PM

Check to make sure your rear shaft is sliding freely on the front shaft splines. If not this will cause the whole shaft to move toward the front when rear axle rotates up under a load which could be the cause of your problem.

68LSS1 · 10-17-2003, 08:20 PM

I had problems keeping the carrier bearing together with the old 350/350 combo. I am hoping with the new set up that the driveshaft length will be short enough to go to a one peice. If not, I was going try one of Inland Empire's bearings (as I will be using their driveshaft) and was going to fab a stiffer bracket like you suggested.
they show a yellow poly bearing on their website but do mention a red "stiffer" bearing they have also.

Ackattack · 10-17-2003, 08:29 PM

Well until today my drive shaft wasn't sliding like it's supposed to, but I fixed that, and it still does it. Maybe that is what weakend the bracket though.

Denny · 10-17-2003, 10:23 PM

I am getting vibration usually when under a load especially when it is cold out. I don't have vibration under normal driving conditions usually otherwise. I think it is a carrier type problem but am not sure. My carrier is new. I need to check on the sliding part that could be my problem. I think these carrier are flimzy for what they have to do. Vibrations are really aggrevating. Does Impire Bearing have a web address 68LSS1?

Denny · 10-17-2003, 11:13 PM

I just checked out Inlands site and those carrier bearings and driveshafts look like the ticket

Thanks again 68LSS1 for the information, I will be calling them next week for prices.

neonlarry · 10-19-2003, 02:01 AM

The 1/2 ton carrier bearing they sell must be modified to fit on our trucks. I have one on mine, but it requires some machine work to get it to fit. It cost about $75 btw.

*rage'nrat638* · 10-19-2003, 08:08 AM

http://www.iedls.com/bearings.html
check this out

hanssolo · 10-19-2003, 10:20 AM

Just make sure the driveshaft is balanced and not a problem. With a 2-piece you can get weird symptoms. I got mine balanced and a NAPA carrier bearing and have'nt had any problems since.

Denny · 10-19-2003, 05:33 PM

Neonlarry what has to be modified on the carrier?

neonlarry · 10-19-2003, 08:31 PM

The part the bolts into the bracket on the frame is to wide to fit into the bracket, so it has to be milled down on both sides. I have some pics of what you have to do, but I am not able to attach any pics on the board. I can e-mail them though.

**ThreeQuarter** · 10-19-2003, 10:25 PM

I just posted a new thread that all of you might be interested in, called "Possible solution to carrier bearing woes."

Denny · 10-20-2003, 05:25 PM

Thanks for the info neonlarry, I know what to expect then when I get it. I am ordering the 2 piece drive shaft with the slide section and carrier from them tomorrow, I may go with the oversize driveshaft.

10-17-2003, 08:06 PM	#1
Ackattack Senior Member Join Date: Aug 2002 Location: Valley Center KS Posts: 3,525	carrier bearing...anyone else with this problem Basically what happens is the carrier bearing gets pushed forward as the bracket bends. This causes the front driveshaft to lift and the driveshaft to vibrate a little. I think the carrier bearing bracket is too weak, so I'm going to redesign my own. Does anyone else have this problem? What did you do? I think my bracket may have gotten broken/weakened when I dropped a drive shaft....I don't know for sure. __________________ Project Bruiser: 68 Pro-Touring C-10 5.3L / 4L60E Project Ironhide: 97 GMC Crew Cab 4x4 Cummins SOLD: '69 GMC 1/2T SWB TBI'd: Project No Buck Assembly Manual Index Sign up Thread!!! Factory Service Manual Index

10-17-2003, 08:18 PM	#2
jhow66 Registered User Join Date: Jun 2002 Location: Knoxville Tenn. Posts: 3,058	Check to make sure your rear shaft is sliding freely on the front shaft splines. If not this will cause the whole shaft to move toward the front when rear axle rotates up under a load which could be the cause of your problem. __________________ 56 Chevy Bel-Air 2dr. HT (purchased new) 71 Chevy Cheyenne SWB PU (502HO) 65 GMC short bed step--work in progress and my gofer

10-17-2003, 08:20 PM	#3
68LSS1 Registered User Join Date: Dec 2002 Location: Tampa Posts: 1,191	I had problems keeping the carrier bearing together with the old 350/350 combo. I am hoping with the new set up that the driveshaft length will be short enough to go to a one peice. If not, I was going try one of Inland Empire's bearings (as I will be using their driveshaft) and was going to fab a stiffer bracket like you suggested. they show a yellow poly bearing on their website but do mention a red "stiffer" bearing they have also. __________________ '68 Short Step LS1/T56, Hydratech, Fatman Fabrications Stage III, Baer, Hot Rods to Hell, US Body, S&W, etc Last edited by 68LSS1; 10-17-2003 at 08:27 PM.

10-17-2003, 08:29 PM	#4
Ackattack Senior Member Join Date: Aug 2002 Location: Valley Center KS Posts: 3,525	Well until today my drive shaft wasn't sliding like it's supposed to, but I fixed that, and it still does it. Maybe that is what weakend the bracket though. __________________ Project Bruiser: 68 Pro-Touring C-10 5.3L / 4L60E Project Ironhide: 97 GMC Crew Cab 4x4 Cummins SOLD: '69 GMC 1/2T SWB TBI'd: Project No Buck Assembly Manual Index Sign up Thread!!! Factory Service Manual Index

10-17-2003, 10:23 PM	#5
Denny Registered User Join Date: Jul 2002 Location: Cedar Hill, MO Posts: 426	I am getting vibration usually when under a load especially when it is cold out. I don't have vibration under normal driving conditions usually otherwise. I think it is a carrier type problem but am not sure. My carrier is new. I need to check on the sliding part that could be my problem. I think these carrier are flimzy for what they have to do. Vibrations are really aggrevating. Does Impire Bearing have a web address 68LSS1? __________________ 1969 Chevy C10. Dakota Digital Gauges, 383 Votex Engine, MSD 8361 Distributor, MSD 6A Unit, Demon Carb, Phoenix Transmission 4L80E trans, 3:73 Posi Rear End Early Classics 6 Lug Disc Brakes and Spindles All Stainless Lines Last edited by Denny; 10-17-2003 at 10:30 PM.

10-17-2003, 11:13 PM	#6
Denny Registered User Join Date: Jul 2002 Location: Cedar Hill, MO Posts: 426	I just checked out Inlands site and those carrier bearings and driveshafts look like the ticket Thanks again 68LSS1 for the information, I will be calling them next week for prices. __________________ 1969 Chevy C10. Dakota Digital Gauges, 383 Votex Engine, MSD 8361 Distributor, MSD 6A Unit, Demon Carb, Phoenix Transmission 4L80E trans, 3:73 Posi Rear End Early Classics 6 Lug Disc Brakes and Spindles All Stainless Lines

10-19-2003, 02:01 AM	#7
neonlarry Registered User Join Date: Feb 2002 Location: Vacaville, CA Posts: 2,746	The 1/2 ton carrier bearing they sell must be modified to fit on our trucks. I have one on mine, but it requires some machine work to get it to fit. It cost about $75 btw. __________________ 70 C/10 Light Red 350/TH350, HEI, Duals w/40 series Flows, 91 seat, LED taillights 99 Pontiac S/C GTP, SLP Ram Air hood, GMPP Konis & springs 95 Neon ACR, MP PCM, AFX UDP, 3.0 CAI

10-19-2003, 08:08 AM	#8
rage'nrat638 Account Suspended Join Date: Mar 2003 Location: THE FALL GUY CHICAGO IL Posts: 5,883	http://www.iedls.com/bearings.html check this out

10-19-2003, 10:20 AM	#9
hanssolo Registered User Join Date: Sep 2001 Location: central Ill. USA Posts: 447	Just make sure the driveshaft is balanced and not a problem. With a 2-piece you can get weird symptoms. I got mine balanced and a NAPA carrier bearing and have'nt had any problems since. __________________ 69 C10 longbed: 357c.i. /TH400/3.73s/AC/ beige primer/saving $ for paint ______________________________

10-19-2003, 05:33 PM	#10
Denny Registered User Join Date: Jul 2002 Location: Cedar Hill, MO Posts: 426	Neonlarry what has to be modified on the carrier? __________________ 1969 Chevy C10. Dakota Digital Gauges, 383 Votex Engine, MSD 8361 Distributor, MSD 6A Unit, Demon Carb, Phoenix Transmission 4L80E trans, 3:73 Posi Rear End Early Classics 6 Lug Disc Brakes and Spindles All Stainless Lines

10-19-2003, 08:31 PM	#11
neonlarry Registered User Join Date: Feb 2002 Location: Vacaville, CA Posts: 2,746	The part the bolts into the bracket on the frame is to wide to fit into the bracket, so it has to be milled down on both sides. I have some pics of what you have to do, but I am not able to attach any pics on the board. I can e-mail them though. __________________ 70 C/10 Light Red 350/TH350, HEI, Duals w/40 series Flows, 91 seat, LED taillights 99 Pontiac S/C GTP, SLP Ram Air hood, GMPP Konis & springs 95 Neon ACR, MP PCM, AFX UDP, 3.0 CAI

10-19-2003, 10:25 PM	#12
ThreeQuarter Senior Member Join Date: Jun 2000 Location: Texan in Iowa Posts: 2,522	I just posted a new thread that all of you might be interested in, called "Possible solution to carrier bearing woes." __________________ Ben '68 Chevy C10 Custom LWB 327/TH400 2nd owner '16 GMC Sierra 1500 SLE Dblcab 4wd 5.3

10-20-2003, 05:25 PM	#13
Denny Registered User Join Date: Jul 2002 Location: Cedar Hill, MO Posts: 426	Thanks for the info neonlarry, I know what to expect then when I get it. I am ordering the 2 piece drive shaft with the slide section and carrier from them tomorrow, I may go with the oversize driveshaft. __________________ 1969 Chevy C10. Dakota Digital Gauges, 383 Votex Engine, MSD 8361 Distributor, MSD 6A Unit, Demon Carb, Phoenix Transmission 4L80E trans, 3:73 Posi Rear End Early Classics 6 Lug Disc Brakes and Spindles All Stainless Lines



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