Im looking at buying a dana 60 for my 72 roadrunner. Does anybody know what the correct specs are for this year?? Ive seen soo many different numbers, im not sure which is correct?? 60"s total length?? 46" center of perch to center of perch?? please help. thanx

 

 

If you want a factory dana , you need to get a 71 model year , they changed the width then as per the chart, but in early 72 they went from a dana to what they called a corporate dane. it was their version of a dana only cheaper built, and not as bullet proof. You can buy a new dana from moser axles, complete for your car bolt in around 2 g`s. if you get a 66-70 dana and have it modified, youll have more then that in it. Unless your gonna run over 500 horse for the street, id use the 8 3/4. its very tough. and they put it behind hemi auto`s. so that tells you the reliability of them.

 

there was a guy local to me that was selling a Dana 60 5 lug from a mopar a few months back. I would think that they are just as strong as the 8 3/4 but I could be wrong.

Me though, I'd probably just throw a FF D60 in and call it good.

 

i always thought dana 60's were stronger than the 8 3/4

 

i'm not sure. Did they put the 8 3/4 in only some vehicles and the others got dana 60s? or did they only put the 8 3/4 in all vehicles til a certain year and then the dana 60 replaced it (or vis versa)?

I do know that the 8 3/4 is a really strong axle. i'm not sure how it would compare to a 5 lug dana 60, but i think a ff d60 is stronger than a 8 3/4. (i'm also more of a wheeler so.....)

 

the 8 3/4 was standard on 340 and up motored cars. till you hit the 440. if you got a 4spd -440. then you automatically got the dana 60. it was a medium duty truck axle. resplined for a pass, car.same w/ hemi, auto got the 8 3/4, 4 spd, got the dana. yes the 8 3/4 is a tough rear. but the dana under even excessive street use is nigh bullet proof. where the other isnt. i`ve blown my share of 8 3/4`s doing burnouts , and street racing, but i have yet in 23 years to hurt my dana cars. hands down its the best performance rear.

 

agree completely with rr69half6bbl
if your were a 440 or hemi 4 speed, you got the dana
i have it on my car stock, and when i had the cover off on it, i noticed how huge and thick the gears were

 

belive it or not i found a 68 GTX in a barn in 06. the car had sat there since 71. it had 21k on the odo.the guy who had it was gonna build a drag car with it, it ws a 440 -4spd.the dana had 4.88`s in it and the car was cut up in the front. but the rest of it was all there. I got the dana and trans and went through them, the teeth in the trans didnt even have a wear pattern on them, the main cluster gear still had sharp edges on it. the dana. was gone through in 71, when I went through it, i put 3.73s in it. but the paint was still on the 4.88 gear set. i couldnt beleive it. an old drag racer bought the car from the first guy who didnt finish it, parked it in the barn then never messed w/ it.

 

It obviously has been a long time but I at one time I was responsible for the section of the assembly process that loaded the axles. I might be wrong, but I don't remember ever building a Hemi without the Dana axle.

Arge

 

the dana was an option like anything else, alot of hemi cars in auto had a dana. but were optioned that way. there was a few articles years ago, in 1 of the mopar mags where galen gav. did the numbers article, and he covered this topic, and said that the 8 3/4 was standard fare for hemi ,w/ auto. a buddy has a 66 hemi coronet, its an auto w. 8 3/4 rear and its all orig.

 

I would not argue that with you. I was at (1) plant and we built the Cuda's, the Challengers, at one time the Chargers amongst others. We did not built a lot of Hemi's, but as I stated I don't "remember" ever building one without the Dana. I didn't say they didn't build them with an 8 3/4.

Arge

 

easy 65, I wasnt hakin on you , I was just relaying info that i knew. wasnt lookin for an arguin match. Im sorry if I got **** in your wheaties. ) that was a joke)

 

If you ordered an automatic 440 or hemi, (not sure about other engines)
you got the 8 3/4 rear
if you ordered stick, because of the high torque, you got the dana 60

 

It didn't bother me at all and I didn't read anything into it. However, I still don't remember ever building a Hemi without the Dana, but that doesn't mean we didn't. We had several different plants that built hemi's and different body style had different options. One thing about the hemi though and that was they were not easy to build, so most of us knew of everyone when they were coming down the line.

Without my old "build code" books I really don't know, I just don't remember loading the Dana on a Hemi, stick or automatic. Now if I could come across some of my old build code bookslets. We used the 8 3/4 on the 440's, but I don't remember them on the Hemi's, but that has been a long time. During that period I was a General Supervisor in the Chassis Department.

Had I thought you were "pissing in my wheaties" I would have noted that and I came to this forum for help, not arguements especially about something I don't remember.

The knowledge on this forum is unbelievable.

Arge

 

sweeeet, I am glad. yes i agree, the knowledge here is top shelf. and the folks are more tuned in then some other sites ive been too.

 

i am putting a 30 spline 8 3/4 with detroit locker & big drums in my ute . it has a 25 spline 9 bolt borg warner now . how much hp could i loose ?