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What yoke and driveshaft for '70 Charger?

Started by Mastodon08, February 27, 2017, 04:17:32 AM

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Mastodon08

Hi there gentlemen, I'm wondering what is the proper slip yoke and driveshaft for a 70 Charger with a 440/A-833 transmission and I believe the rear end is a 3.23 ratio. I did the manual check where you spin the wheels and see how many times the yoke on the rear diff turns. It's right around 3 1/4 turns so like I said I think it's 3.23. Where do I get these also?

Thank you!

Phil

Kern Dog

What do you need? Just the drive shaft? I'd check with your local drive shaft service shop. There are drive shaft lengths listed but it really is best to slip a yoke in the transmission until it bottoms out, pull it out 3/4" to 1 inch, then measure from the flat face of the yoke to the flat face of the diff yoke. Write the measurement down and take it to the drive shaft shop.

John_Kunkel

'70 Charger, 440/833/Dana 60 shaft is P/N 2996581 which is 50.97" center-to-center of the u-joints and has a 7290 yoke.
Pardon me but my karma just ran over your dogma.

CRW-FK5

Quote from: John_Kunkel on February 27, 2017, 01:45:33 PM
'70 Charger, 440/833/Dana 60 shaft is P/N 2996581 which is 50.97" center-to-center of the u-joints and has a 7290 yoke.
If ratio is 3.23:1 then likely 8.75 rear end, not Dana.  8.75 rear end requires shaft length to be 1.125" longer than Dana shaft.  I actually just made the swap the other way on my Charger.  The guy before me had a shaft for the 8.75 rear end in and it was nearly bottoming out, so I had another one build that was 1" shorter.

John_Kunkel



OOPS, missed the 3.23 part (not stock configuration). Yes, 8 3/4" shaft would be 1.120" longer.
Pardon me but my karma just ran over your dogma.

Mastodon08