Dana 30/44

[trent]

I own a 73 Scout II with drum front brakes, and was thinking about upgrading to disc. Looking at the axle in my rig, it looks like a Dana 44. How do you tell the difference between a 30 and a 44? I have the original build sheet for the truck, but am unable to decifer the codes. The front axle is listed as a "fa-13frt dr axle" with the code 02013. Is it possible that the rig came from the factory with 44s?

 

[ronmc1954]

Hi trent welcome to the forum! If you have the line setting ticket there should be a bom mumber that will look like this: 0441289c91, this is for the d44 on my Scout. That does not nessasarly mean thats what you have, the po May have done some changing to the axles.
There is a bom # stamped on the axle tube and if you read this post you will find out just where to look. There is also a Dana pdf file on the post that should have your bom listed and tell you what you have. Here's the link to the post:
http://www.forums.IHPartsAmerica.com/axle-tech-questions/662-limited-slip-differential.html

If I have paid attention on this forum, a 73 did come with a d30 front and a d44 rear. My 74 has both d44's
ron

 

[RobertC]

It appears a fa-13 is a d30 -- if it is the original axle on your vehicle.

 

[trent]

Thanks for the info. I just picked up a d44 disc front end and was wondering where it came from. I was unable to link to the pdf file explaining the codes in the other thread. The axle is stamped 4239b4 510035 2.
On another topic, can I use the brake booster that I had in the rig for the drum brakes for the disc set-up, or do I need to upgrade to a new brake booster for the discs? Thanks for all the help. Steve.

 

[RobertC]

Here is the link to the tech lit for spicer / Dana axles:

the expert - main menu - information for driveshafts, u-joints, axles, heavy axles, light axles, driveline

Someone else will need to answer your questiojn about the disk brake conversion. From what I have read, there are "differences" and disk / drum parts are needed (particularly the "proportioning valve", but others as well).

 

[Scoutboy74]

thanks for the info. I just picked up a d44 disc front end and was wondering where it came from. I was unable to link to the pdf file explaining the codes in the other thread. The axle is stamped 4239b4 510035 2.
On another topic, can I use the brake booster that I had in the rig for the drum brakes for the disc set-up, or do I need to upgrade to a new brake booster for the discs? Thanks for all the help. Steve.

No you can't. You need the booster from an sii that had front disks originally which began with m/y '74. However not all '74 scouts came with d44's as that was the transition year.

 

[trent]

Thanks for the info. Thats a bummer that I can't re-use the drum master cylinder and booster; I just replaced them. Does anyone have any experience with an engine driven hydro-boost instead of a vacuum boost? It sounds like an elegant solution, but a little expensive.