8 lug 10b onto d44

[NorCal_Chris]

Local guy is selling a pair of axles for a fairly good price from a 3/4 ton 88 burban..

It comes with the 14b sf 8 lug and the 10b 8 lug. I think i would rather run my d44 than a 10 bolt. So my question is will the 10b 8 lug parts go on my d44? I know you can use 8 lug d44 stuff on a 10b to make it 8 lug, but havnt heard of this the other way.

Also would the perches on the 14b fit up with my setup?

Thanks for the info



Going onto a 73 blazer btw

 

[blazinzuk]

It is a serious misnomer that the front 10 bolt is any less of an axle than the 44 unless you have a traction device or something cool about your 44 just run the 10 bolt. Of course if the 44 you have is coming out of your blazer then you need to keep the pass side knuckle to do a cool xover steer.

I have never done it but am pretty sure the outers from the 10 b will interchange with the 44 if you are so inclined

the 14bsf should bolt right in as far as spring perches go pretty sure shock mounts are the same too.

 

[NorCal_Chris]

It is a serious misnomer that the front 10 bolt is any less of an axle than the 44 unless you have a traction device or something cool about your 44 just run the 10 bolt. Of course if the 44 you have is coming out of your blazer then you need to keep the pass side knuckle to do a cool xover steer.

I have never done it but am pretty sure the outers from the 10 b will interchange with the 44 if you are so inclined

the 14bsf should bolt right in as far as spring perches go pretty sure shock mounts are the same too.

Thanks for the quick response!

I thought the d44 and 10b were on the same level, but a couple people i know said the 44 had the edge. I will have to call the guy up and swing by and look at them.

 

[Corey 78K5]

The outers are manufactured by Spicer. You should see the Spicer "S" stamped in them somewhere. Just like if you want cross over on a 10 bolt you swap in a D44 flat top knuckle.
Strength wise there is no difference between a 10 bolt and a D44. The 44 just has a more popular name and as far as I am concerned looks better. From a gear head point of view.

 

[Thunder]

The 30 spline front 10b axles on the 88 sub are a bit stronger and more Hd than a 27 spline d44 front. 10B 30 spline axle shafts are thicker, bearings are bigger.
I would not change out a 30 spline 10B for a weaker D44.
Bolt in the new 10 bolts and dont look back.
27 spline 10 bolts and D44 are pretty much equal
But the 30 spline 10 bolt are stronger than d44s. Both front and rear.

 

[4X4HIGH]

Yes the outers will interchange between D44 and 10 bolt BUT be aware that if you're not changing the spindles that you could run into a problem as there were two different spindles for a D44 (mid year 1976 is the split assuming everything is stock still) the early 1st design spindles used an inner wheel bearing with an ID of 1.75" while the 2nd design used a 2" ID inner bearing and you cannot just simply change bearings in the hub/rotor assembly. So with that said just make sure you swap everything but the knuckles and you'll be good to go.

 

[4X4HIGH]

The 30 spline front 10b axles on the 88 sub are a bit stronger and more Hd than a 28 spline d44 front.
Bolt in the new 10 bolts and dont look back.

First off i fixed a mistake for you.

The axles are marginally stronger but the carrier is weaker since GM only bored out the carrier to accept the larger axles which means the carrier is thinner in the carrier bearing area. Also, there is only a 3 year span for 30 spline axles so finding a replacement should he need one could be alot more trouble than the earlier 28 spline axle.

 

[Thunder]

Bah! who cares about a tooth or 2
Well for me the 30 spline 10 bolts hold up much better than 27 10b or 28 D44s.
Of the 3 axles the D44 has the smallest shafts. 10B 30 spline the thickest.
I have never broken a front carrier...... yet. Axle shafts and u joints are a diferent story. But i like 30 spline better than 27 10b/ d44
30 sp axles are not that hard to find. I live in a pretty rual area and can pick up 10B stuff fairly cheap. Plus there is always 10B parts fore sale here on Ck5.

 

[NorCal_Chris]

Yes the outers will interchange between D44 and 10 bolt BUT be aware that if you're not changing the spindles that you could run into a problem as there were two different spindles for a D44 (mid year 1976 is the split assuming everything is stock still) the early 1st design spindles used an inner wheel bearing with an ID of 1.75" while the 2nd design used a 2" ID inner bearing and you cannot just simply change bearings in the hub/rotor assembly. So with that said just make sure you swap everything but the knuckles and you'll be good to go.

Ok that sounds good. Everything but knuckles it is.

I will take a look at the 10b and if it is in better looking shape than my d44 i might go that route. so we will see.

 

[82355]

Do the set of axles you are looking at, have the same gears as what you have in your Blazer? If not, there is no reason to regear to keep a Dana 44 over a 10 bolt. As far as I am concerned, swapping the entire axle would be simpler than swapping outers.

Martin

 

[AJs72K5]

First off i fixed a mistake for you.

The axles are marginally stronger but the carrier is weaker since GM only bored out the carrier to accept the larger axles which means the carrier is thinner in the carrier bearing area. Also, there is only a 3 year span for 30 spline axles so finding a replacement should he need one could be alot more trouble than the earlier 28 spline axle.

I'm confused. I thought the front D44 had 30 spline axles. Here's a link to a Yukon set at Randy's --> LINK Did I miss something?

 

[4X4HIGH]

I'm confused. I thought the front D44 had 30 spline axles. Here's a link to a Yukon set at Randy's --> LINK Did I miss something?

I'm refering to a 10 bolt axle.

 

[AJs72K5]

Bah! who cares about a tooth or 2
Well for me the 30 spline 10 bolts hold up much better than 27 10b or 28 D44s.
Of the 3 axles the D44 has the smallest shafts. 10B 30 spline the thickest.
I have never broken a front carrier...... yet. Axle shafts and u joints are a diferent story. But i like 30 spline better than 27 10b/ d44
30 sp axles are not that hard to find. I live in a pretty rual area and can pick up 10B stuff fairly cheap. Plus there is always 10B parts fore sale here on Ck5.

The 30 spline front 10b axles on the 88 sub are a bit stronger and more Hd than a 27 spline d44 front. 10B 30 spline axle shafts are thicker, bearings are bigger.
I would not change out a 30 spline 10B for a weaker D44.

And just to tie this back into the original thread...I'm running a 1/2 ton D44. I swapped 3/4 ton 10 bolt outers (from the spindles out) onto my axle. It was an easy swap.
Bolt in the new 10 bolts and dont look back.
27 spline 10 bolts and D44 are pretty much equal
But the 30 spline 10 bolt are stronger than d44s. Both front and rear.

I'm refering to a 10 bolt axle.

Right...but part of the discussion here has been around the strength of a D44 and it having, as you corrected above, 28 spline axles. But, a stock D44 from our trucks should have 30 spline axles, correct?

And to bring this back to the original thread, I'm running the original D44 on the rig. I swapped in the outers from a 3/4 ton 10 bolt...everything from the spindles out. It was an easy swap...should only take a couple of hours.

 

[tRustyK5]

The newer 10's and the D44 were both 30 spline. The splines are not cut exactly the same and the shaft lengths are a little different. This has come up in the past with guys hoping to use spares from one front diff in the other...and although close in appearance, same spline count etc they don't interchange.

The older 10's were 28 spline.

The only common "27 spline" part on our trucks is the output for the TH350 and 700-R4.

Edited for accuracy...

Rene

 

[6.2Blazer]

Bah! who cares about a tooth or 2
Well for me the 30 spline 10 bolts hold up much better than 27 10b or 28 D44s.
Of the 3 axles the D44 has the smallest shafts. 10B 30 spline the thickest.
I have never broken a front carrier...... yet. Axle shafts and u joints are a diferent story. But i like 30 spline better than 27 10b/ d44
30 sp axles are not that hard to find. I live in a pretty rual area and can pick up 10B stuff fairly cheap. Plus there is always 10B parts fore sale here on Ck5.

Uhhh......show me a 27 or 28-spline D44......bet you can't.



To the best of my knowledge all D44's found in Chevy trucks were 30-spline (I believe almost all D44's front or rear were 30-spline unless some of the real early non-GM models).

10-bolts were 28-spline up to around '88 or '89...from my understanding the fronts were not 30-spline until '89 but it's hard to give a hard date when it comes to GM vehicles. The axle shaft diameter for 10-bolts did go from 1.28" for the 28-spline shafts to 1.31" for the 30-splines (same as the D44), but it's a moot point because every factory front shaft I have seen between the two had a neck-down (i.e. weak point) of the same diameter. I 've laid a 30-spline 10-bolt inner down next to a D44 inner and the only visible difference are the shafts are different lengths (though the pressure angle on the splines are different also).