What Rear End

[supercab4x4dually]

Hi all,

I have a 1985 Ford F-350 4X4 Dually with 4:11's for gear ratio,and I tore the rear out last week(ring and pinion),and I need to fix A.S.A.P.Im almost 100% sure it's a Dana 70 but how do I make sure it's not a Sterlin?Thier was no tag on the rear cover.The truck was painted or I would get the axel code off the door jam.Any help or what to look for's would be great.Thank you.I took a better at the ring gear,and it has the ford logo stamped in it with a 410 # right behind it,and the a # starting with E5.......Does this help in anyway figuring out if it's a sterlin 10.25 rear or a Dana 70.

 

[STLKIKN]

"E5" is just the beginning of the factory Ford part number.... it is a year code.

"E" is the 80's, and the 5 is for , well, 5. So you have a 1985 part.

Call your local Ford dealer with the whole part number, they should be able to tell you what diff you have from it.

 

[supercab4x4dually]

I got the door jam paint off,and the axel code is 65.The whole # on the ring gear is (FORD)410 E5TW-DA-1041-85E,and the pinion gear has the fallowing #DAMA-8T,and on the shaft of the pinion gear it has the #5tw DA-10-4-8gC.It's a 1985 F350 4x4 Dually,and the tran's code is P ,and the spring code is T5.The rear end look's alot differant from the 1985 Dana 70 rear I have out of a truck laying on the ground.The one in the truck has like a lip all the way around the front of the housing.I'm really leaning on it's a 10.25,or Sterlin.Any Idea's????I hate ordering the wrong part's,and hope to get it right the 1st time.Thank you for any out out on this.

 

[Seabronc]

Up till 86 any way, that code stood for Dand 4.56 rear end.

Good luck,

>-

 

[supercab4x4dually]

It is the origanal rearend,and I have a dana 70 with 4:56's(the one I talked about on the groung)But If it was a 10.25/Sterlin would the Dana 70 bolt right into it's place?What does the 410 stand for behind the Ford oval stamping?

 

[supercab4x4dually]

/emoticons/[email protected] 2x" width="20" height="20" /> After alot of digging around the axel code#65 on a 1985 F350 4X4 Dually is for a 10.25 Ford rear with 4.10's.That's probaly why the Dana 70 I have out on the groung look's alot differant from the rear in the truck with the blowing ring,and pinion.Thank's for the reply though.Heath