Datsun Roadster Forum-311s.org

I used several layers of contractor's garbage bags cut in a square under the front wheels. This allows the wheels to turn side to side easily and settle properly when lowered down after adjustment.

I like putting it on floating pads that allow full movement. With the reflectors we get to see what it is really doing..

Yeah the bags will not give a correct reading.
1st thing to do is making sure its suspension is free
I was the alignment tech at my Datsun dealer
A lite car like the 311 is hard to get free enough to get a true reading .
The rack turntables at the dealer were worn and rusted , I tried sanding and greasing ( turntables has 1/2 "nylon balls in a ring. Then the plate is to slide out easily .
I told the manager we needed new or refurbished TTs
But they swapped them out for used . about what we had .
I built a alignment machine I use on my cars and it worked but tried on a Nieghbors Ranger and couldnt get it free enough to set right
Those are strange align heads Bear had rounded triangles on a triangle plate . ...all the trust is in the computer huh

This is at my friend's race shop. He builds racing Miatas.. It's set up for lightweight cars. The pads slide around pretty easy.

I trust the computer when it produces good results. This produces good results.

Yes I was talking about the post above using trash bags
Looks like fine machine

Drives straight with hands free, handles good, no abnormal tire wear - good enough for me.

Seen these a few times....

https://page.auctions.yahoo.co.jp/jp/auction/r413770809