SS Dana Axle?

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SSing

SSing

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We had a discussion about the rear axle in the original 4-speed car when leaving Hurst, if I remember correct. Can´t find it now, but I through out the question on Classracer Forum, the possibility of Chrysler using the slightly shorter 1967 B-body Dana 60. Witch would make sence. And rumers has it they did.
Anyone have access to an original axle, and can check flang to flang.
Just over 59" for the ´67 axle and just over 60" for a ´68 axle.
Thanks.
20161125 rear axle FABO.jpg
 
According to the "Authentication Guide" (pg32, sect.4), "a standard B-body width axle should be used with the spring mounts moved in 1.30ins.per side to fit the necessary 41.44 width of the Hemi configuration". Keep in mind these cars, from the factory, used a weird wheel (part #2836903). FYI, I used the old Mopar spring re-location kit and a set of 15x10 wheels with a 4 1/4BS. It's close & allows me to use a 10.5 tire.
 
hemicop said:
According to the "Authentication Guide" (pg32, sect.4), "a standard B-body width axle should be used with the spring mounts moved in 1.30ins.per side to fit the necessary 41.44 width of the Hemi configuration". Keep in mind these cars, from the factory, used a weird wheel (part #2836903). FYI, I used the old Mopar spring re-location kit and a set of 15x10 wheels with a 4 1/4BS. It's close & allows me to use a 10.5 tire.
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Yes, the SS Guide has been very useful, but in my case, I double check things regardless.
For example I couldn´t find any thing about the rear wheel opening on the Cudas, or the front on both Cudas and Darts for that matter. I had notised this for many years, but at the time, you didn´t mess with the big guys.
Think of it... it is impossible to run 29-30" tall tires like the Darst did, in a Cuda wheel opening, unless you cut an inch, an inch and a half of front lower lip.
Front opening had lower front edge cut to accommondate 28-29" tall front runners.
According to NHRA rules, you coulden´t touch wheel openings, so Hurst did all this. Internal wheel well though, was alowed to be trimmed/massaged . In´72 minor movement of shock and spring mounts were allowd, and this is when minitubing started.
Another interesting detail would have been the K-member. Worth a chapter of its own I thing.
 
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Did they run 29-30” tires in 1968?

What was the tire spec at the time the cars were released.
 
autoxcuda said:
Did they run 29-30” tires in 1968?

What was the tire spec at the time the cars were released.
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10,5" X 29,5" till they star working inside of wheel well. As form Hurst, it is in the Guide I believe.
 
67 B-body Dana rears were not production line assembly in spring 1968. 1968 B-body rear were specifically called out to be modified.

The 67 B-body Dana is not the right width either.

The wheel offset was done to take care of the width issue.

Torrozzi requested quotes from rear rims with even more offset than were finally used. But they would not be done in time and were a lot more expensive. There’s where the roughly 1” was lost.
 
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SSing said:
10,5" X 29,5" till they star working inside of wheel well. As form Hurst, it is in the Guide I believe.
Click to expand...

But was 10 1/2” slick the written tire rule for the 1968 NHRA season?

I know there was a tire rule.

What the rules changed to in 1969, 1970, etc are irrelevant to the initial design of the car.
 
autoxcuda said:
67 B-body Dana rears were not production line assembly in spring 1968. 1968 B-body rear were specifically called out to be modified.

The 67 B-body Dana is not the right width either.

The wheel offset was done to take care of the width issue.

Torrozzi requested quotes from rear rims with even more offset that were finally used. But they would not be done in time and were a lot more expensive. There’s where the roughly 1” was lost.
Click to expand...

Ok thanks
 
autoxcuda said:
But was 10 1/2” slick the written tire rule for the 1968 NHRA season?

I know there was a tire rule.

What the rules changed to in 1969, 1970, etc are irrelevant to the initial design of the car.
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I have lost the ´68-´69 NHRA rule booklet.
But for SS 1970 it says " any wheel/tire combinaion that will fit into the original wheel well"
If I remember correct, this was also valid for ´68-´69.
For Stock different ofcause (7")
 
In 1970 they were using larger tires. That’s why you see “original” cars with the clipped front lower lip. That was not “as delivered”. It’s a later modification.
 
autoxcuda said:
In 1970 they were using larger tires. That’s why you see “original” cars with the clipped front lower lip. That was not “as delivered”. It’s a later modification.
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This is typically how Hurst did it on the Cuda. I have tons of pics from ´68-´69. All having this mod. Some a little more, some a little less.
For ´70 NHRA rule book. "Internal wheel-well modifications are allowed, however external fender alternations are not premitted"
PAPA CUDA WW MOD 2FABO.jpg
 
SSing said:
This is typically how Hurst did it on the Cuda. I have tons of pics from ´68-´69. All having this mod. Some a little more, some a little less.
For ´70 NHRA rule book. "Internal wheel-well modifications are allowed, however external fender alternations are not premitted"
View attachment 1715717831
Click to expand...

Unfortunately, I see no proof that Hurst did that to as delivered Barracuda’s.
 
autoxcuda said:
Unfortunately, I see no proof that Hurst did that to as delivered Barracuda’s.
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Ok, so Hurst had the Dart´s build with cut up wheel wells to accommondate bigger tires, and Cuda´s with production wheel well, only for the new owner having to cheat on NHRA, to be competitive with the Dart´s?
 
SSing said:
This is typically how Hurst did it on the Cuda. I have tons of pics from ´68-´69. All having this mod. Some a little more, some a little less.
For ´70 NHRA rule book. "Internal wheel-well modifications are allowed, however external fender alternations are not premitted"
View attachment 1715717831
Click to expand...

A few things you must consider. Many racers ran these cars in AHRA and they have different rules. Did the AHRA guys cut there fenders? Maybe. Did Hurst cut the Barracuda fenders?? I have found no evidence that they did. I have in my hands personal notes from Bob Tarozzi and there is no reference to Hurst cutting the wheel openings on Barracudas. Did the racers cut the opening?? Yes they did.

The Dana 60 is a fun topic. Here are the modifications that were made to them before they were installed. I keep hearing was it a B body and if so what year? All my research has pointed to 1968 B Body that was modified by Dana for these cars. What was the measurements? Don’t know and we might never know. Was it a Hustle Stuff part? Your answer might lie in the part number 2881245. In Bobs notes it says “PN 2881245 3.54 w/brakes right hand studs”
CE0F42C9-DD19-4958-AAC0-311C394DCC85.jpeg
 
I just found something. Here is a picture that was taken of the Socks & Martin car by Bob when they were doing tire and spring testing. This original photo was taken in April 1968. We know this is a early car and a real BO. That opening is not cut.....
D1449431-F4D6-4ABD-B264-2A28BC963772.jpeg
 
ns1rm21 said:
This is just a very cool photo that I wanted to share. View attachment 1715727734
Click to expand...

Well since I started this thread... not saying I´m going to have the last word, because I think you guys are putting me on...
So what you are saying is, these two tires are equally tall? And what happened to this piece. It is more obvious on pic post #15
And don´t say every singel Barracuda owner immediatly started to cut rear wheel well open to accommondate same tires Darts run...
Pics are of Sox car is April ´68, and production car wheel well.
april68 Sox WW compare.jpg

production car ww.jpg
 
How about this. If you want to cut your wheel wells then go for it. If you want to tell everybody that Hurst cut the wheel wells then that is up to you. All I’m saying is there is no proof or documentation showing that Hurst did any modifications to the outside lip of the Barracuda.
 
upload_2021-4-25_12-48-43.png
This rear wheel well sure looks stock to me after enlarging the picture.
 
here is couple more of the Mule car when testing at Irwingdale DS early ´68 I think it was.
Wouldn´t we all love to run these tires under our stock Barracuda :)
Again, look at the front lower 10-15" segment of the wheel well.
Cut stars flush or close to flush to front inner wheel well at the very bottom, than upwords till it meet the edge som 0-15" up. You gain an inch or so, meaning 2" taler tires, if you run same clearance to the front lower lip.


mule Dana 60 tires fabo.jpg

Mule rear WW fabo.jpg
 
As delivered photo.....I think this question has been just answered.
DE01570F-87C4-4155-9598-9F15528AC32F.jpeg
 
I have never said that the racers never modified the cars. Now MAYBE on the second or third batch of cars Hurst played with them but the paperwork I have shows no evidence that. My paperwork is dated up to April 1968.


254DAED9-F032-4CB1-9F2A-04F02BD4E9C2.jpeg
 
ns1rm21 said:
I have never said that the racers never modified the cars. Now MAYBE on the second or third batch of cars Hurst played with them but the paperwork I have shows no evidence that. My paperwork is dated up to April 1968.


View attachment 1715729061
Click to expand...
Notice the vin 299142 on the window. Not sure if this would be an early or later build.
 
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