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Tapered to non tapered axles

63savoy426

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I have a 63 savoy.
It has the original 8 3/4 with tapered axles. I want to change to non tapered to handle my 512.
What are my options? I have no experience with mopar rear ends
 
You can non taper axles of the correct length. However you will need to use Green style non adjustable bearings which are sealed units. There is no room in a tapered axle housing for the inner axle seal. The recess isn't deep enough. The Greens work fine. A lot of people complain about them. I've run them may times, never an issue. Have one current pair installed in 1991.
Doug
 
Did the same as mr. b installed '65 Coronet housing/axles a perfect fit on my '63 Fury.
 
How much power is this engine going to produce and how much hook with the rear tires and suspension provide? If the answer is over 500 hp/torque, you may want to consider a Dana 60.....
 
Dr. Diff should have everything you need to do the conversion. There's a recent thread on here, with a member doing just this. I don't think it's been updated yet.

I'm wanting to do the same with my '62. The '65 housings are hard to find, plus the cost keeps going up when you do find one. The '70 housing is about 5/8" wider on both ends. Doesn't look right to me. I'm not at that point yet in my project but when I get there it will be all documented.
 
Thanks for the input. Ive been looking for a 65 coronet rear but no luck. I think im going to convert it.
Motor will be around 500 to 600 horsepower i think
 
Thanks for the input. Ive been looking for a 65 coronet rear but no luck. I think im going to convert it.
Motor will be around 500 to 600 horsepower i think
Automatic? 500hp is pretty much putting the 8 3/4 on the edge. If the car is a stick, it's over the edge.
 
Besides the axle type, you also need to consider what type of driveshaft/yoke setup you want. Later 8 3/4" rears hook up to a slip joint yoke, and used a 65-up 727, that took slip joint yoke.
Usually, on the early cable shift 727s, they can be converted for slip yoke, using a 65 ONLY tailshaft, and tail housing. Hard to find?
 
Besides the axle type, you also need to consider what type of driveshaft/yoke setup you want. Later 8 3/4" rears hook up to a slip joint yoke, and used a 65-up 727, that took slip joint yoke.
Usually, on the early cable shift 727s, they can be converted for slip yoke, using a 65 ONLY tailshaft, and tail housing. Hard to find?

my driveshaft bolted right up to the '70 rearend and 64 bb 727 flange. There's a local shop around here that can make up a new one with a male/female slip yoke arrangement for about $500. The only thing with the '70 rearend I have is that the pinion angle dips downward quite a bit. I may have to add shims to correct it.
 
Yup...all about options, and what you want/have to make it work.

My 64 is a console shift, so shoved a 67 727 in it, using linkage on my Olds slap stick.
 
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