Just a quickie raised from SC850s topic, is there any differences between the rear arms other than the mount for the rear shock absorber?
A photo would be great.
The part I'm after mainly is the shape of the curve to it when viewed from above.
I've thought the dry type arm curves out more, whereas the hydro one is straighter.
The issue came up when trying to measure clearance from tyre to arm.
Thanks.

I think the curve is the same. Track width of wet and dry are anyway.
However the position of the socket for the knuckle joint is a bit different on hydros, but as long as you use Hi-Los they will work.
Also, on a hydro arm the brake pipe is in a different spot, not at top where it can get squished on LOW cars.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

Thanks Doc! I'll know for sure in a couple of weeks when I fiddle around with different wheels.