Subject: New PSRU design
From: paul lamar
Date: 8/29/2015, 6:30 AM
To: A10-Me-Earthlink



Finally got my 86 13b running…..best way to find and add a PSRU would be?

Byron Head

I have had some ideas lately on low cost housings. Randy Kempf volunteered
to manufacture a PSRU with his NC shop but I have not heard from him lately.

This supplier sells thick wall aluminium tube in 1/4 inch increments.
They will cut it to any lenght.

http://www.vitaneedle.com/aluminum-tube.htm

Adapter plate bolt circle is 5.875.

Ring gear OD is 5.025 .

You need a 6.25 over all dia flange 1/2 inch long to bolt the
psru to the adapt plate .

6.25 OD tube with one inch wall 1/2 inch long will do it
tig welded to the 5.25 OD main housing .

Low cost. Very little waste aluminium and lighter than Tracy's box

Anybody with a ten inch lathe or larger could build it.

I'll work on this more when I get back from Oz


Neal Unger is working on one in Oz. I may have some pictures of
his hardware when I get back in a week or two.


Paul Lamar