1971 Hemi Roadrunner Dana 60 A33 track package question

[rusty]

I have been researching the correct rear end for my 71 Hemi Roadrunner and everything points towards a 70-72 B body 3.54 Trac-Lok 603222-1, -2
Can anyone tell me why it says -1 or -2?

When you measure the rear end is it from outer brake backing plate to outer brake backing plate and does anyone know what the measurement should be for a 71 RR Hemi 4 speed car?

Last question - front disk brakes I am told it should have 11" drums on the rear? I have also heard 10" drums??

Thanks

 

[droptop]

dana 60 rear end widths, drum-to-drum:
66-'67= 59 1/2"
'68-'70= 60 1/8"
'71-'72= 63"

center of flange to center of flange
66-69 B-body 54-15/16"
70 B-body 54-29/32"
71-74 B-body 57-47/64"

 

[rusty]

Excellent - now please dumb it down a little for me I was on the short bus.
Drum to Drum meaning outside face of drum to outside face?
Center of flange to center of flange - Axel face????

Thanks!!!!!

 

[droptop]

Flange is the spring perch. Drum is where the backing plate bolts on.

 

[rusty]

I would of never guessed Flange was the spring perch - thanks

 

[mahoney0_00_3]

only car to have 11 in rear drums/front disk was the aar cuda---TA challenger --10 in drums on my 68 hemi hardtop

 

[rusty]

Is your 68 a DANA 60 rear?

 

[mahoney0_00_3]

yes all 4sp hemi cars had a dana, trak pak cars I thought had 410 gears?or you got 355's std

 

[rusty]

A33 - 3.54:1 Dana 60 Track Package. I guess the rear I found with 11" drums is for a TAA or AAR

 

[mcmopar]

I don't believe any T/A Challenger or AAR 'Cuda had a Dana 60 installed since they were only 340 cars (albeit 6 BBL's.) I know my '69 Road Runner with Hemi suspension option and non-floating Bendix 4 piston calipers up front has 10" x 2" rear drums (same as a 318 Satellite). In '70 the discs became single piston/ full floating mounted. Perhaps since the '71's were a bit heavier they went to 11" rear drums. Do you know the shoe width on the rear? Should be less than 3" wide - perhaps 2-1/2".

 

[69hemibeep]

11" all the way around dana 60 4spd 3.54 gears. 3" wide in the front and 2.5 rear if memory serves me.

 

[rusty]

I don't know the width - its a rear end I was looking to purchase. My car is a B11 on the fender tag for front disk brakes and from what I am able to determine it should have a rear with 10" drums. Now the question is do I still buy this rear and convert it over?

 

[droptop]

Does it have holes to attach a pinion snubber? If it does not have them it is out of a truck. My '69 GTX has a 4:10 dana and it has 11x2.5 drums on the rear.

 

[mahoney0_00_3]

you get 11 drums if you have drums all around I wanted to say you only got 10in drums with disk brakes in front---so if you have a dana out of the drum brake only car you got 11 in in back---if you got disk on the front you will have 10in drums in back ---only the T/a and AAR had disk and 11in drums in back

 

[rusty]

Its got the snubber and the holes. looks like everything is pointing towards a rear out of a 71 B Body with four wheel drum brakes thus the 11" drums. I know I could swap out the 11" to a 10" but at $2500 asking price not sure I want to have to do that.

 

[droptop]

you get 11 drums if you have drums all around I wanted to say you only got 10in drums with disk brakes in front---so if you have a dana out of the drum brake only car you got 11 in in back---if you got disk on the front you will have 10in drums in back ---only the T/a and AAR had disk and 11in drums in back

My '69 GTX has the 4 piston Kelsey Hayes power disc in front and 11x2.5 drums in rear. I purchased from original owner in '76 so I know it came this way.

 

[droptop]

Its got the snubber and the holes. looks like everything is pointing towards a rear out of a 71 B Body with four wheel drum brakes thus the 11" drums. I know I could swap out the 11" to a 10" but at $2500 asking price not sure I want to have to do that.

At that price, unless you are building a numbers car, I would go with a Strange 60 axle. If you buy this 45 year old axle, you are most likely going to need to go through it. You can have a brand new, bullet proof axle that will bolt in, and have a warranty. :cents:

http://www.strangeengineering.net/m...rac-lock-35-s-t-axles-leaf-spring-mounts.html

 

[rusty]

its a numbers car - 71 hemi roadrunner 4 speed.

 

[69hemibeep]

There are #s on the back side of the right side axle tube as far as materials go so if your after #s you better check these or your wasting your time. I have the break down on how to read these Ill dig them up

 

[69hemibeep]

Here you go. The diff is dated on the tube near the center, mine is dated 12-18-68 for a 1-27-69 car. Further to the right in the bill of materials, Also dated 12-18-68 and materials 602957-4 which covers 1 thru 4. Check out this sight........http://www.mopar1.us/dana.html