Sliding joint for torque arm front

[funcars]

I need to decide how best to allow the front of a torque arm to move in and out in very tight space constraints. A double rod end link would work but it needs more vertical space than a telescoping link with a large rod end at the end. A single rod end (or urethane end) will be in bending but at the end of the torque arm the loads are very low.

My main issue is deciding how to do a telescoping link. I've seen some versions on the market, but I want to fab my own. I can use teflon or other bearing materials. Has anyone done there own and used this type of design?

The car is a 70 mach I with a dry sump motor, my own front end (stock car type LCA, new frame channels, Pro coilovers, splined sway bar, etc.) and fullfloater in the rear. I am going to switch to a cambered rear once the torque arm is in. The torque arm is partially fabbed already and will mount on the pass side of the tunnel down low (it's tight).

Thanks for any input.