Here is some info related to dana 44 brakes.

on the dana44, the axel tube ends have the 4 bolt pattern. 91/92 disk brakes will NOT bolt on.

the brakes that it came with are the same as the 9 bolt brakes.

also, info that i didnt know about before on the dana 44 differential -

the dana44 diff uses a 2 series carrier up to the 3.54 gear ratio. past that, it uses a 3 series carrier for ratios above 3.54.

i also found that i needed a slightly shorter driveshaft than a normal fbody - mine measured out to be 44 3/8" rather than the 45" that seems to be the norm for 10 bolt t5/700r4 cars.

if anyone has any more info that would like to post let me know, and if someone knows im wrong about the series numbers for the carrier, just correct me!

just wanted to add this for informational purposes so if someone does a search as to what brakes will bolt up to the dana 44, they know, as i could not find anything before...

 

I use a stock driveshaft with mine, no problems. The axle flanges on the GMPP Dana44 are the same as on any 10 bolt disc rear. Any disc brake arrangement that was used on a 10 bolt will bolt right on.

 

Intresting - my 92 3rd gen disk brake rear used a different style flange to bolt the brakes on... had the piece that stuck up ontop of the axel. my 1le 92 brakes definatelyt would not fit onto the dana 44, which has the 4 bolt flange...

anyone else have other info?

not surprised the stock DS worked, it's less than 3/4 of an inch difference

Steve

 

Stuck up on top of the axle? That's a drum brake flange.

 

This information is incorrect, the backing plate bolt pattern on the Dana 44 is a 10-bolt disc bolt pattern not a 9-bolt pattern.

This is also incorrect; I used my stock driveshaft on my Dana 44 I just had to use a different U-joint to accommodate the smaller yoke. I have a LS1 aluminum driveshaft now and that fit's too after a U-joint change.

You must have a custom Dana 44 rear or something, the one that came from GM performance parts and SLP was a direct bolt in. Do you have any pictures of your rear?

 

this is the flange that was on my 92 10 bolt disk brake axel


The brakes that came with the dana 44 are exact as far as i can tell to the 9 bolt brakes.

so its obvious that my 92 brakes would not bolt on to this rear.

as for the driveshaft length being incorrect, i don't know what to tell you, but the DS length that i measured showed the distance was shorter, not signifigant to the point at which you would need a different driveshaft however.

i'll get some pics, the car is in the air anyways...

Steve

 

That is a drum brake flange notched to mount a disc brake backing plate. Your 92 rear is a drum brake rear, not a disc brake rear.

The rear end doesn't dictate anything to do with the brakes, other than the backing plates. A 9 bolt has all the exact same brake parts as a 10 bolt, except for the backing plates. Both the 9 bolt and 10 bolt use a 4 bolt flange, but with slightly different hole spacing.

 

dude, i'm not stupid - my 92 rear had that flange, there was no 4 holes anywhere on the flange of that rear and it had the 91/92 style pbr disk brakes on it...

they would never fit on the 4 hole flange, its just not possible

 

as for the hole spacing, yes, this i know...

 

91/92 PBR rears are the same as any other year of PBR rears. All the backing plates bolted to a 4 bolt flange. Your setup wasn't stock.

 

fb305svs,
That is a drum brake flange. That is definitely not a disc brake flange. Also the disc flanges are 4 bolt flanges.

That little in distance makes no difference at all. The driveshaft slides forward and back in the transmission so it will fit fine.

 

Also here is a picture stright out of the GM shop manual of a drum brake setup.

 

And this is what the bolt pattern on the disc rears look like. I took this picture out of my C4 brake upgrade thread. This is a flange for LS1 rear brakes but same flange bolt pattern.

 

It should be noted that the plate for PBR equipped thirdgens doesn't look much like that, it's just a stamped plate.

 

here's a pic that shows the correct factory flange and mounting for PBR rears.

<img src="https://www.thirdgen.org/techbb2/attachment.php?s=&postid=1887046">

 

wel i guess its apparent that the brakes i had were using a fabricated bracket to hold the calipers.....

 

Someone could have invented something to mount your discs onto the drum rear. All you need to put those brakes onto the Dana 44 is a set of 10 bolt backing plates.

 

well either way, i'm gonna be trying to put a set of ls1 rears on it... i hate the brakes that are on it now.... they just suck... the 92 brakes i had worked well...

oh well..

 

APEIRON you sure are correct, AUDREY has the same exact set up that you have in the picture. She has a dana 44 w/4 holes and she put brand new 1le break set up on it and it fit perfect in the car, and the drive shaft was correct also, just changed the universal joint.

 

yeah i think i said earlier it shouldnt make much difference as far as the length difference goes....


it matters to me as i plan on putting a lot of power through the driveline and need the yoke to have as much spline engaugement as possible!

 

They why would you want to make it shorter?

 

be cause i don't want any butting of the yoke into the case of the trans...

i couldn't tell ya why it needs to be shorter, but that is how the driveshaft place wanted me to measure it...

 

I put my stock 1988 9-bolt disc brakes on my Dana 44 but I had to elongate the bolt holes on the backing plates for them to work. My stock aluminum driveshaft fits fine (but needed a different u-joint, of course)

 

So is this what the brackets should look like on my Dana 44? Ofset like that? I got a set off of a '97(I think) z-28 and those brackets are also offset.

So if I understand this correctly, I'm all set, every thing should fit.

 

Yep, everything fit perfectly.