dana 44hd axle questions? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

shelby987 · 02-06-2006, 12:51 PM

Can anyone tell me the difference between the 67-70 3/4t front axles and the 71-72 3/4t front axles. I know the pre 71 all had disc brakes, if I got a 71 and up front axle and put it on my 70, what would I be losing? Gaining?

Alexis · 02-06-2006, 12:59 PM

early danas(68-67?) had closed knuckles, good luck getting parts from my understanding. Might have to check wiht some of the 4x4 guys about that.

Other then drums, thats the only thing I can think that was different. I have no idea about other model danas.

Americanrider · 02-06-2006, 01:17 PM

I just did the swap in my 67 K20 and it was well worth the time and effort! Sharper turning radius and better braking. Since you already have an open knuckle type axle your turning radius should stay the same. The swap will also include brake lines (hard & soft) and disk/drum P-block.... something to figure into the cost & time of the conversion.

You might want to sell the 70 parts, they are harder to locate than closed knuckle stuff since it was a 1 year only setup.

*72longbed* · 02-06-2006, 08:56 PM

Quote:

Originally Posted by shelby987

Can anyone tell me the difference between the 67-70 3/4t front axles and the 71-72 3/4t front axles. I know the pre 71 all had disc brakes, if I got a 71 and up front axle and put it on my 70, what would I be losing? Gaining?

Shelby987,
to the best of my recollection, the 1971 and FORWARD had disk brakes up front. The year 1970 had drum brakes from the factory, I think??

Any time you upgrade to disk brakes, in my opinion, you are improving the safety and performance of the vehicle. Just make sure you use the proper M.C., prop valve, and vacuum canister.

72longbed

**special-K** · 02-07-2006, 09:33 AM

It`s a bolt-in with all the parts.

Firearmfiend · 02-07-2006, 07:46 PM

Don't forget, drum brakes had 6 lugs and disk brakes had 5 lugs from what I remember...

1969 GMC · 02-07-2006, 08:37 PM

Quote:

Originally Posted by Firearmfiend

Don't forget, drum brakes had 6 lugs and disk brakes had 5 lugs from what I remember...

for 2wd 1/2 tons, yeah. not for 4x4's

1967k30 · 02-07-2006, 09:57 PM

He has a 3/4 ton 4x4. I would upgrade,........already! I have a nice disc brake D44 8lug w/ 4.10's but I'm located in NE.

Firearmfiend · 02-08-2006, 03:27 PM

DUH... 3/4 ton... maybe I should read the post

02-06-2006, 12:51 PM	#1
shelby987 Registered User Join Date: Mar 2005 Location: Just outside Durham, NC Posts: 894	dana 44hd axle questions? Can anyone tell me the difference between the 67-70 3/4t front axles and the 71-72 3/4t front axles. I know the pre 71 all had disc brakes, if I got a 71 and up front axle and put it on my 70, what would I be losing? Gaining? __________________ 1969 SS 350 Camaro Sold 2008 1970 3/4T K20, stock height with 33's, 250 I6, 3 on the tree, and locked front and rear 4.10's 1980 Chevy Malibu 2 dr Sold 2007 1993 Olds. Cutlass Ciera Wagon Traded 2006 2003 Saturn L200 w/5pd. D/D My list spans 5 decades with One common thread.....GM!

02-06-2006, 12:59 PM	#2
Alexis Member since 2000 Join Date: Dec 2000 Location: Mountain View Ca / Mexico Posts: 7,874	Re: dana 44hd axle questions? early danas(68-67?) had closed knuckles, good luck getting parts from my understanding. Might have to check wiht some of the 4x4 guys about that. Other then drums, thats the only thing I can think that was different. I have no idea about other model danas. Last edited by Alexis; 02-06-2006 at 01:01 PM.

02-06-2006, 01:17 PM	#3
Americanrider Registered User Join Date: Dec 2004 Location: NW, WA. Posts: 1,421	Re: dana 44hd axle questions? I just did the swap in my 67 K20 and it was well worth the time and effort! Sharper turning radius and better braking. Since you already have an open knuckle type axle your turning radius should stay the same. The swap will also include brake lines (hard & soft) and disk/drum P-block.... something to figure into the cost & time of the conversion. You might want to sell the 70 parts, they are harder to locate than closed knuckle stuff since it was a 1 year only setup.

02-07-2006, 09:33 AM	#5
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: dana 44hd axle questions? It`s a bolt-in with all the parts. __________________ "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 ~

02-07-2006, 07:46 PM	#6
Firearmfiend Registered User Join Date: Aug 2001 Location: San Rafael, CA, USA Posts: 157	Re: dana 44hd axle questions? Don't forget, drum brakes had 6 lugs and disk brakes had 5 lugs from what I remember... __________________ '70 C-10 Short/Fleet 350 In the family since new and more than 300K on the odometer!

02-07-2006, 09:57 PM	#8
1967k30 Senior Member Join Date: Sep 2005 Location: NE Posts: 363	Re: dana 44hd axle questions? He has a 3/4 ton 4x4. I would upgrade,........already! I have a nice disc brake D44 8lug w/ 4.10's but I'm located in NE. __________________ 01 2500 Duramax,6spd,4x4,Not stock. Estimated 550rwhp/1100rwfp on fuel only. 03 3500 Duramax,6spd,4x4,Pac-Brake,not stock Estimated 500rwhp/1000rwfp fuel only 67 K10 in many pieces Little Brothers truck 67 K20 Cummins 12V/NV4500/205, D60/Eaton w/ Detroit,37" Xterrains,crossover steering, Future plans,Twins and lots of fuel.

02-08-2006, 03:27 PM	#9
Firearmfiend Registered User Join Date: Aug 2001 Location: San Rafael, CA, USA Posts: 157	Re: dana 44hd axle questions? DUH... 3/4 ton... maybe I should read the post __________________ '70 C-10 Short/Fleet 350 In the family since new and more than 300K on the odometer!



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