Hub or front end issue? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

tylervalo · 06-21-2014, 02:33 PM

I broke my drive shaft last year and had to drive the truck home on the front wheels in 2 hi. About half way home it started acting like it was popping the TC out of gear.

Today I finally got to drive it again, I took it around the neighborhood in 4 Lo and it started popping again, occasionally acting like it was in neutral for a 1/2 a second. I pulled it in my hard and felt a small pop then nothing, I could see thought he floor the front driveshaft was still spinning but not moving the truck in 4hi or 4lo. I unlocked the hubs, locked the hubs back and hopped back in the truck and it started moving again.

Anyone have a wild guess where my issue might be? I'm thinking something with the hubs.

rich weyand · 06-21-2014, 02:51 PM

What kind of hubs are they?

tylervalo · 06-21-2014, 02:52 PM

Manual hubs, I think they are warn.

rich weyand · 06-21-2014, 03:45 PM

Surprising. I thought Warn hubs were nearly indestructible.

v30crewcab · 06-21-2014, 10:06 PM

why are you driving it in 4lo on pavement? that will break something. It binds everything up.
you probably need to take your hubs apart and make sure nothing is broke, or needs to be cleaned and regreased. they do need maintenance from time to time.

tylervalo · 06-21-2014, 10:13 PM

It's really only 2wd since my rear drive shaft is disconnected

buddy_1 · 06-22-2014, 12:13 AM

Probably stretched out the TC chain and its starting to jump a tooth at times. The front axle drive is designed to assist the rear drive axle. Now that your driving a front wheel drive truck, all the weight and torque is going to be too much for the chain to handle over the long haul.

tylervalo · 06-22-2014, 07:23 AM

I have a 205 tc.

68Timber · 06-22-2014, 08:48 AM

Quote:

Originally Posted by tylervalo

I have a 205 tc.

That is interesting. I was thinking it was the chain too. I'd pull the front cover and check the ring & pinion and make sure there's no broken teeth.

donut · 06-22-2014, 11:43 AM

Also take a look at the slip joint on the front driveshaft. I also thought chain, but the spline connection on the slip joint may be worn. (for that matter, in a 30yr old truck, it all may be worn.)

Just for giggles, what are you working on?

tylervalo · 06-22-2014, 01:36 PM

Working on this
http://67-72chevytrucks.com/vboard/s...d.php?t=614810

v30crewcab · 06-22-2014, 03:24 PM

more than likely you just need to clean and regrease the hubs. they are either sticking, or have some broken parts that are hanging up.

donut · 06-22-2014, 08:13 PM

Hubs first, then other stuff. Odds are just what v30crew mentioned. Grease on my '73, had started to dry, hub operation was sketchy. Clean and re grease and all was good.

Fathers' 84 stripped out the front driveshaft slip joint.

06-21-2014, 02:33 PM	#1
tylervalo Registered User Join Date: Sep 2011 Location: Knoxville, Tn Posts: 408	Hub or front end issue? I broke my drive shaft last year and had to drive the truck home on the front wheels in 2 hi. About half way home it started acting like it was popping the TC out of gear. Today I finally got to drive it again, I took it around the neighborhood in 4 Lo and it started popping again, occasionally acting like it was in neutral for a 1/2 a second. I pulled it in my hard and felt a small pop then nothing, I could see thought he floor the front driveshaft was still spinning but not moving the truck in 4hi or 4lo. I unlocked the hubs, locked the hubs back and hopped back in the truck and it started moving again. Anyone have a wild guess where my issue might be? I'm thinking something with the hubs.

06-21-2014, 02:51 PM	#2
rich weyand Registered User Join Date: Apr 2014 Location: Bloomington Indiana Posts: 1,041	Re: Hub or front end issue? What kind of hubs are they? __________________ Rich Weyand 1978 K10 RCSB DD.

06-21-2014, 02:52 PM	#3
tylervalo Registered User Join Date: Sep 2011 Location: Knoxville, Tn Posts: 408	Re: Hub or front end issue? Manual hubs, I think they are warn.

06-21-2014, 03:45 PM	#4
rich weyand Registered User Join Date: Apr 2014 Location: Bloomington Indiana Posts: 1,041	Re: Hub or front end issue? Surprising. I thought Warn hubs were nearly indestructible. __________________ Rich Weyand 1978 K10 RCSB DD.

06-21-2014, 10:06 PM	#5
v30crewcab Registered User Join Date: Apr 2012 Location: Chatt Tn Posts: 971	Re: Hub or front end issue? why are you driving it in 4lo on pavement? that will break something. It binds everything up. you probably need to take your hubs apart and make sure nothing is broke, or needs to be cleaned and regreased. they do need maintenance from time to time. __________________ 88 military v30 crewcab shortbed 5.9 cummins, nv4500, 205 86 k30, 89 diesel burb, 76 gmc pathfinder 71 longbed 5.3 4l80 http://67-72chevytrucks.com/vboard/s...d.php?t=522535

06-21-2014, 10:13 PM	#6
tylervalo Registered User Join Date: Sep 2011 Location: Knoxville, Tn Posts: 408	Re: Hub or front end issue? It's really only 2wd since my rear drive shaft is disconnected

06-22-2014, 12:13 AM	#7
buddy_1 Registered User Join Date: Dec 2013 Location: Humble, Texas Posts: 185	Re: Hub or front end issue? Probably stretched out the TC chain and its starting to jump a tooth at times. The front axle drive is designed to assist the rear drive axle. Now that your driving a front wheel drive truck, all the weight and torque is going to be too much for the chain to handle over the long haul. __________________ I know the "VOICES" aren't real but they have some great ideas. 1978 GMC Sierra Classic C25 1983 Datsun 280ZX Turbo 1997 Chevy Cheyenne K2500 1999 Polaris Sport 400

06-22-2014, 07:23 AM	#8
tylervalo Registered User Join Date: Sep 2011 Location: Knoxville, Tn Posts: 408	Re: Hub or front end issue? I have a 205 tc.

06-22-2014, 11:43 AM	#10
donut Registered User Join Date: Aug 2009 Location: S.C. Posts: 1,593	Re: Hub or front end issue? Also take a look at the slip joint on the front driveshaft. I also thought chain, but the spline connection on the slip joint may be worn. (for that matter, in a 30yr old truck, it all may be worn.) Just for giggles, what are you working on? __________________ '86 C-30 dually, 454/tbh400 '73 K-20 350/350/205 (sold ) I'm kinda like duct tape- no real purpose, but handy to have around.

06-22-2014, 01:36 PM	#11
tylervalo Registered User Join Date: Sep 2011 Location: Knoxville, Tn Posts: 408	Re: Hub or front end issue? Working on this http://67-72chevytrucks.com/vboard/s...d.php?t=614810

06-22-2014, 03:24 PM	#12
v30crewcab Registered User Join Date: Apr 2012 Location: Chatt Tn Posts: 971	Re: Hub or front end issue? more than likely you just need to clean and regrease the hubs. they are either sticking, or have some broken parts that are hanging up. __________________ 88 military v30 crewcab shortbed 5.9 cummins, nv4500, 205 86 k30, 89 diesel burb, 76 gmc pathfinder 71 longbed 5.3 4l80 http://67-72chevytrucks.com/vboard/s...d.php?t=522535

06-22-2014, 08:13 PM	#13
donut Registered User Join Date: Aug 2009 Location: S.C. Posts: 1,593	Re: Hub or front end issue? Hubs first, then other stuff. Odds are just what v30crew mentioned. Grease on my '73, had started to dry, hub operation was sketchy. Clean and re grease and all was good. Fathers' 84 stripped out the front driveshaft slip joint. __________________ '86 C-30 dually, 454/tbh400 '73 K-20 350/350/205 (sold ) I'm kinda like duct tape- no real purpose, but handy to have around.



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