1971 Chevy 3/4 ton front axle parts needed ASAP - The 1947 - Present Chevrolet & GMC Truck Message Board Network

78 Bonanza · 09-29-2016, 03:16 AM

So I picked up this 1971 Chevy 3/4 4x4 the other day when a guy couldn't pay me for the work I did on his truck. The transmission was out (I had a spare in the parts shed) so I pulled it home with my Blazer. I started tearing into the front axle right away and found that the passenger's side had been run with bad bearings for a very long time. It loosened the bolts to the lock out hub and ate it up along with the spindle and hub housing. I have searched high and low around my parts stash and can not find the right spindle or hub for the truck.

**special-K** · 09-29-2016, 06:39 AM

Get the BOM # off the axle tube to be sure it's 1st or 2nd design to get started. You may be able to use '72 parts. I had a bearing go out and the spindle threads got hammered. Fortunately, my '72 has 1st design and I had a take off from a '71 from back when you could get parts from GM. It had minor thread damage is why I replaced it. No able to afford the luxury of being so particular with no replacement parts available, it was time to doctor that one up. That's when I learned GM used unique thread pitches there are no tools available fr. So, it was get out the jeweler's files and finesse it time. that's what is on my truck now.

Look on the parts board. John H in WA has a complete axle. I know it's a tense time for you not having your wood gathered with old man winter around the bend. time for desperate measures. Maybe find a 10-bolt and slap it in for now, if all else fails. Probably could find one local.

78 Bonanza · 09-30-2016, 03:51 AM

Still looking.

**gmc 2500 4x4** · 09-30-2016, 08:00 AM

i have a 69 gmc 3/4 with dana 44 closed knuckle. like special-K said if you can get that # off the axle, i have good hubs/spindles. my tube reads 603100-1

**gmc 2500 4x4** · 09-30-2016, 08:09 AM

http://therangerstation.com/tech_lib...ana_axle.shtml

78 Bonanza · 09-30-2016, 09:26 PM

I only have the manufacturing date codes number off of the axle as the other numbers look like a rock or something else scraped them off. The numbers I did pull are; 6161A4 as best as I could read them as they were scraped up pretty badly too. It is an open knuckle axle. The model id number for the axle is 445F. All of the tags and other id markers are gone. The build tag is gone from the glove box too. So no help there either. Hope this helps.

**kwmech** · 09-30-2016, 10:34 PM

Unless you get lucky at a wrecking yard, finding those parts is like hens teeth. The easiest alternative is upgrading to the later model stuff such as an '80+ off a 10 bolt. Spindle, hub/rotor assy. and the internal locking hub, it will take the same backing plate and caliper. Outer wheel bearing will be the same, inner will change over to a 104949. (By the way the later model 10 bolt spindles are the same as the early 3/4 ton. Just a different part number)

09-29-2016, 03:16 AM	#1
78 Bonanza Registered User Join Date: Jan 2013 Location: Alamosa, CO Posts: 19	1971 Chevy 3/4 ton front axle parts needed ASAP So I picked up this 1971 Chevy 3/4 4x4 the other day when a guy couldn't pay me for the work I did on his truck. The transmission was out (I had a spare in the parts shed) so I pulled it home with my Blazer. I started tearing into the front axle right away and found that the passenger's side had been run with bad bearings for a very long time. It loosened the bolts to the lock out hub and ate it up along with the spindle and hub housing. I have searched high and low around my parts stash and can not find the right spindle or hub for the truck. Last edited by kcsa75; 09-30-2016 at 08:33 AM. Reason: Wanted to buy post by a non-subscriber.

09-29-2016, 06:39 AM	#2
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,862	Re: 1971 Chevy 3/4 ton front axle parts needed ASAP Get the BOM # off the axle tube to be sure it's 1st or 2nd design to get started. You may be able to use '72 parts. I had a bearing go out and the spindle threads got hammered. Fortunately, my '72 has 1st design and I had a take off from a '71 from back when you could get parts from GM. It had minor thread damage is why I replaced it. No able to afford the luxury of being so particular with no replacement parts available, it was time to doctor that one up. That's when I learned GM used unique thread pitches there are no tools available fr. So, it was get out the jeweler's files and finesse it time. that's what is on my truck now. Look on the parts board. John H in WA has a complete axle. I know it's a tense time for you not having your wood gathered with old man winter around the bend. time for desperate measures. Maybe find a 10-bolt and slap it in for now, if all else fails. Probably could find one local. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

09-30-2016, 03:51 AM	#3
78 Bonanza Registered User Join Date: Jan 2013 Location: Alamosa, CO Posts: 19	Re: 1971 Chevy 3/4 ton front axle parts needed ASAP Still looking.

09-30-2016, 08:00 AM	#4
gmc 2500 4x4 Senior Member Join Date: Mar 2012 Location: ripley ny Posts: 2,897	Re: 1971 Chevy 3/4 ton front axle parts needed ASAP i have a 69 gmc 3/4 with dana 44 closed knuckle. like special-K said if you can get that # off the axle, i have good hubs/spindles. my tube reads 603100-1

09-30-2016, 08:09 AM	#5
gmc 2500 4x4 Senior Member Join Date: Mar 2012 Location: ripley ny Posts: 2,897	Re: 1971 Chevy 3/4 ton front axle parts needed ASAP http://therangerstation.com/tech_lib...ana_axle.shtml

09-30-2016, 09:26 PM	#6
78 Bonanza Registered User Join Date: Jan 2013 Location: Alamosa, CO Posts: 19	Re: 1971 Chevy 3/4 ton front axle parts needed ASAP I only have the manufacturing date codes number off of the axle as the other numbers look like a rock or something else scraped them off. The numbers I did pull are; 6161A4 as best as I could read them as they were scraped up pretty badly too. It is an open knuckle axle. The model id number for the axle is 445F. All of the tags and other id markers are gone. The build tag is gone from the glove box too. So no help there either. Hope this helps. Last edited by 78 Bonanza; 09-30-2016 at 09:32 PM. Reason: add details

09-30-2016, 10:34 PM	#7
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,483	Re: 1971 Chevy 3/4 ton front axle parts needed ASAP Unless you get lucky at a wrecking yard, finding those parts is like hens teeth. The easiest alternative is upgrading to the later model stuff such as an '80+ off a 10 bolt. Spindle, hub/rotor assy. and the internal locking hub, it will take the same backing plate and caliper. Outer wheel bearing will be the same, inner will change over to a 104949. (By the way the later model 10 bolt spindles are the same as the early 3/4 ton. Just a different part number)



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