Eaton Posi into a non Posi 67

[Al R.]

As the title suggests, how difficult is it to install an Eaton posi unit into a non-posi housing on a 67 small block once the housing is out of the car? Is this something a local competent rearend/transmission shop can perform without too much difficulty? TIA for any advice. The rear end does need rebuilding, so I figured this would be a good time for the upgrade. TIA Al

[Tom P.]

Re: Eaton Posi into a non Posi 67

Basically, it's a bolt-in upgrade. Remove the ring gear from the non-posi differential and bolt it onto the posi differential, and set it up per the book.
If you can do rearends, then do it yourself.

[Gary R.]

Re: Eaton Posi into a non Posi 67

As Tom said, it is a direct bolt in. Are you using a new loaded Eaton or building a better original 72 - 79 unit?

[John D.]

Re: Eaton Posi into a non Posi 67

Lots of vids on youtube to get a feel for how its done.

[Al R.]

Re: Eaton Posi into a non Posi 67

Thanks Tom and Gary. It will be a new Eaton unit. Anyone know of a source that can beat the Jeg's price of $559 with free shipping?

[Tom P.]

Re: Eaton Posi into a non Posi 67

With free shipping, that is probably about the best rate. ALTHOUGH, you might try Gears R Us.

[Al R.]

Re: Eaton Posi into a non Posi 67

Thanks Tom! Ya'll have Merry Christmas and stay safe if traveling