Do rear ends perfectly swap from 65-70?

4MuscleMachines · Jan 11, 2006

I understand the width of 65 is shorter than 69-70 and the spring perch spacing on the rear is different. But do the 65's interchange with the 67-68s?
Are they the same overall width and same spring perch location?

Thanks..

Pbum5 · Jan 11, 2006

4MuscleMachines said:
I understand the width of 65 is shorter than 69-70 and the spring perch spacing on the rear is different. But do the 65's interchange with the 67-68s?
Are they the same overall width and same spring perch location?

Thanks..

The perches are all the same. And will bolt right up.

67-70 are about 1" wider on each side than the 65/66

67-70 are the same.

I have a '59 9" (similar to a 65/66) in my 67

Edbert · Jan 11, 2006

Pbum5 said:
The perches are all the same. And will bolt right up.

67-70 are about 1" wider on each side than the 65/66

67-70 are the same.

Confirmed.

chepsk8 · Jan 11, 2006

Same.

If you get deep rims, then use the narrower rear....

LMan · Jan 11, 2006

yep, backspacing cures all ills

4MuscleMachines · Jan 11, 2006

Thanks for the answers, now can you bolt up a 65/66 rear with the tapered axle tubes to a 67/68?

danny clemens · Jan 11, 2006

4MuscleMachines said:
Thanks for the answers, now can you bolt up a 65/66 rear with the tapered axle tubes to a 67/68?

Yes but you'll have to use the 65/66 spring perches and u-bolts to do the swap.

Edbert · Jan 12, 2006

danny clemens said:
Yes but you'll have to use the 65/66 spring perches and u-bolts to do the swap.

Aren't they the same for an 8-inch? Just asking...

gjz30075 · Jan 12, 2006

The perch locations are the same. Its the taper of the axle housing, versus a straight across tube, that dictates what U bolts to use.

Edbert · Jan 12, 2006

I know, but the outer ends of the 65/66 9-inch, the tapered part...is it the same OD as the 8-inch which is not tapered?

danny clemens · Jan 12, 2006

danny clemens said:
Yes but you'll have to use the 65/66 spring perches and u-bolts to do the swap.

Sorry. I meant to say spring plates and u-bolts. I think the tubes on a 65/66 are 2 1/4" in diameter and the 67's are 2 3/4" in diameter where the u-bolts connect. I think this is correct info but I've been wrong before.

Do rear ends perfectly swap from 65-70?

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