Rear axle's - The 1947 - Present Chevrolet & GMC Truck Message Board Network

new68owner · 09-05-2008, 10:08 AM

I just bought a 68 c20 for my son, i would like a little advice. Which axle is in this truck, "Dana something?" by the glove box it has 4.10 gears. I am also wanting some higher gears to save some fuel.

Keep on Trucking · 09-05-2008, 12:26 PM

Don't hold me to this, but it looks like a corporate 10.5" axle. Good luck finding a new gear if it is. If you do find a gear set for it please let me know as I have the same axle in mine

hounddogs! · 09-05-2008, 12:58 PM

Quote:

Originally Posted by Keep on Trucking

Don't hold me to this, but it looks like a corporate 10.5" axle. Good luck finding a new gear if it is. If you do find a gear set for it please let me know as I have the same axle in mine

aka HO52 from Eaton. Mine had a 4.57 gearset, and Keep on Trucking is right; you probably won't find new gears for it. I wound up putting in a 3.54 Dana 60 (look for a 1/2T big block donor truck) and have been quite happy with that. After 12 years, maybe it's time to update the speedo drive.....

BarryB · 09-05-2008, 01:35 PM

Yeap it's a HO52. Parts are almost none existent for those. Your best bet would to swap in a Dana 60. You can find these in some newer 3/4 trucks. But you would have to weld some brakects on to it for the trailing arms and panhard bar. Or just swap it over to leaf spring , then you options would be almost endless. It really isn't that hard when you get into it.

**uncle** · 09-05-2008, 03:22 PM

Change to a Dana rear.

BlueJeep · 09-05-2008, 03:38 PM

If you're up for welding on new brackets I'd recommend the 14 bolt. You can go all the way up through 2008 on that one, and the newer ones (2001 up) had factory rear discs.

Ford sterling or dana 70 rears would work too (and commonly have 3.55's), but the main problem with them is that the hubs stick out so far you'd have to have a very large center cap on your wheels to cover them.

Longhorn Man · 09-05-2008, 03:54 PM

For bolt in ease, MOST big block powered C/20 should have a dana with a 3.54 gear.
As far as bolt in rears, that's as close as you'll be getting.

**WIDESIDE72** · 09-05-2008, 05:23 PM

Member "uncle" has a dana in the parts forun:

354 Dana single trac from a 69 Longhorn. $175 OBO. Please respond to post.

I have a spare 3/4 ton dana, but not sure of gear ratio.

Longhorn Man · 09-05-2008, 05:35 PM

A longhorn would have leafs instead of coils. If he wanted to do that kind of fab work, he'd be better off with a 14 bolt rear.

**uncle** · 09-05-2008, 08:02 PM

I have a coil spring one too,but shipping is HIGH.

new68owner · 09-06-2008, 12:55 AM

Thanks for all the help everyone, it will all prove to be helpful during this little adventure we have.
Rich

pumpkin · 09-06-2008, 10:35 AM

I'ld keep the eaton and put in an overdrive transmission.

new68owner · 09-06-2008, 11:19 AM

Yes, I think a 700R4 would be a good fit for this truck. They can build those transmissions really good now.

09-05-2008, 10:08 AM	#1
new68owner Registered User Join Date: Sep 2008 Location: Cairo, NE Posts: 4	Rear axle's I just bought a 68 c20 for my son, i would like a little advice. Which axle is in this truck, "Dana something?" by the glove box it has 4.10 gears. I am also wanting some higher gears to save some fuel. Attached Images

09-05-2008, 12:26 PM	#2
Keep on Trucking Registered User Join Date: Jul 2005 Location: League city/Houston Posts: 163	Re: Rear axle's Don't hold me to this, but it looks like a corporate 10.5" axle. Good luck finding a new gear if it is. If you do find a gear set for it please let me know as I have the same axle in mine __________________ 1970 4X4, Big block 454, 4 speed, vintage air, Mahagony wood bed, Tilt, tach. Can have new owner for the right price. "Life is tough, its tougher if you are stupid" (John Wayne) My buddys truck for sale here. http://67-72chevytrucks.com/vboard/c...p?product=2676

09-05-2008, 01:35 PM	#4
BarryB Senior Member Join Date: Jul 2006 Location: Blountville, Tn. Posts: 3,904	Re: Rear axle's Yeap it's a HO52. Parts are almost none existent for those. Your best bet would to swap in a Dana 60. You can find these in some newer 3/4 trucks. But you would have to weld some brakects on to it for the trailing arms and panhard bar. Or just swap it over to leaf spring , then you options would be almost endless. It really isn't that hard when you get into it. __________________ We could learn a lot from crayons... Some are sharp; some are pretty;and some are dull. Some have weird names; and all are different colours;but they all have to live in the same box. You may be only one person in the world, But you may also be the world to one person. * Some mistakes are too much fun to only make once. Two rules in life. 1. Never sweat the small stuff! 2. Everything is small stuff!

09-05-2008, 03:22 PM	#5
uncle Senior Member Join Date: Aug 2003 Location: Conyers,Ga. Posts: 7,288	Re: Rear axle's Change to a Dana rear.

09-05-2008, 03:38 PM	#6
BlueJeep Registered User Join Date: Mar 2008 Location: Waukee, Iowa Posts: 1,608	Re: Rear axle's If you're up for welding on new brackets I'd recommend the 14 bolt. You can go all the way up through 2008 on that one, and the newer ones (2001 up) had factory rear discs. Ford sterling or dana 70 rears would work too (and commonly have 3.55's), but the main problem with them is that the hubs stick out so far you'd have to have a very large center cap on your wheels to cover them. __________________ build threads: 86 Suburban 88 Jeep 6.0 swap 49 Chevy truck 54 Chevy wagon 86 Suburban lowered 4/6 54 Chevy wagon 49 Chevy/s10 mix 88 Jeep Wrangler rockcrawler

09-05-2008, 03:54 PM	#7
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Re: Rear axle's For bolt in ease, MOST big block powered C/20 should have a dana with a 3.54 gear. As far as bolt in rears, that's as close as you'll be getting.

09-05-2008, 05:23 PM	#8
WIDESIDE72 Senior Member Join Date: Aug 2008 Location: Cedar Park, Texas Posts: 7,500	Re: Rear axle's Member "uncle" has a dana in the parts forun: 354 Dana single trac from a 69 Longhorn. $175 OBO. Please respond to post. I have a spare 3/4 ton dana, but not sure of gear ratio.

09-05-2008, 05:35 PM	#9
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Re: Rear axle's A longhorn would have leafs instead of coils. If he wanted to do that kind of fab work, he'd be better off with a 14 bolt rear.

09-05-2008, 08:02 PM	#10
uncle Senior Member Join Date: Aug 2003 Location: Conyers,Ga. Posts: 7,288	Re: Rear axle's I have a coil spring one too,but shipping is HIGH.

09-06-2008, 12:55 AM	#11
new68owner Registered User Join Date: Sep 2008 Location: Cairo, NE Posts: 4	Re: Rear axle's Thanks for all the help everyone, it will all prove to be helpful during this little adventure we have. Rich

09-06-2008, 10:35 AM	#12
pumpkin Registered User Join Date: Apr 2006 Location: East Sooke B.C. Canada Posts: 543	Re: Rear axle's I'ld keep the eaton and put in an overdrive transmission.

09-06-2008, 11:19 AM	#13
new68owner Registered User Join Date: Sep 2008 Location: Cairo, NE Posts: 4	Re: Rear axle's Yes, I think a 700R4 would be a good fit for this truck. They can build those transmissions really good now.



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