1973Kathleen
Active Member
I have a 1973 Dodge Dart Sport. I recently put a 8.75 rear in it and when I went to install the driveshaft it was too long. Does anyone know the size I need or have a link to purchase one the correct size. Thanks
Does anyone know what driveshaft I need for a 904 to 8.75 rear
- Thread starter 1973Kathleen
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lemondana
BlackDart
Just have to figure out the centerline of your axles to the centerline of the U joint, and have your shaft shortened that amount of the difference. If the 8 3/4 has the big yoke you'll have to get a conversion u-joint.
lemondana
BlackDart
I can look it up later, I'm on my way out the door.
Here is where I got my driveshaft.................... I have no affiliation with them, but the price was good, and great customer service. They had it done in a couple of days.
www.actionmachineinc.com
Action Machine Inc - Custom Driveshafts & CNC Machine Shop
Action Machine is your leading source for custom driveshaft manufacturing & components for cars, trucks, performance, and industrial applications. Action Machine also has a full machine shop for production and repair work. Proudly satisfying customers with quality work since 1976, our team is...
www.actionmachineinc.com
1973Kathleen
Active Member
I'm not sure what yoke it is its the 741 Case
727 - 8 3/4 in 108 WB car is 45 1/2" Duster or Demon, Valiant 4 dr
904 or 4 spd - 8 3/4 in 108 WB car is 48 1/2" Duster or Demon, Valiant 4 dr
Add 3" for a 111 WB car such as Dart or Scamp
904 or 4 spd - 8 3/4 in 108 WB car is 48 1/2" Duster or Demon, Valiant 4 dr
Add 3" for a 111 WB car such as Dart or Scamp
4mulas
Fixem'up
Measure it. There are several articles in the net about how to do so.
You might want to look at making a new one though? What horsepower are you now making and why the change? If it was a6 cyl shaft you may want a larger diameter too
You might want to look at making a new one though? What horsepower are you now making and why the change? If it was a6 cyl shaft you may want a larger diameter too
RGAZ
Diehard
A driveshaft shop can shorten it easily. They aren't near you but I use these guys. Super old school.
At least go to their site and use their forms to make proper measurements. Their forms are very good.
BTW - I am doing the exact same thing to my 73 duster next month. So if you wait I can share my results.
RGAZ
Carolina Driveline: Driveshafts Speed Balanced Steel and Aluminum
Driveshafts precision balanced on Axiline equipment and over 25 years of custom driveshaft engineering, set us apart!
carolinadriveline.com
At least go to their site and use their forms to make proper measurements. Their forms are very good.
BTW - I am doing the exact same thing to my 73 duster next month. So if you wait I can share my results.
RGAZ
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