Cant get trunk shock nut off
 

New front Bilstein shock in boge strut. I think gland nut is loose causing a rattle or I have a defective insert. Didn't have special Bilstein tool and used a pipe wrench on the gland nut. The trunk nut loosens but then the shock threaded top spins so I can't get the nut all the way off. There is a small indent in the shock threaded top in trunk. How can I hold the trunk threaded shock top while loosening the nut? Want to then push the shock down to get at the gland nut. Thanks in advance. Frustrating doing jobs twice!

got it

I just put Bilsteins in my 87 a few weeks ago. To tighten, I used a pipe wrench to grab the edge of the big 3 inch wide washer below the nut. The washer is keyed into the slot on the bilstein, so it keeps it from rotating while you tighten the nut...

impact wrench.

air tools are your friend,