Suspension dips when shifting (auto) : 87 Cutlass

[GeoR]

Whenever i start my car and shift it into reverse the car raises if i go to reverse it drops lower to the left side. Is the 87 cutlass supreme equipped with air ride or could my shocks and struts be blown? When i jounce test it the right side jumps more and i can hear a "phisss" sound like air. when i do the same to the left it nice and firm ( not too bouncy)
Im not really to sure what to think so if anybody has info please share.

 

[Qdub24]

Does the car have air shocks on the rear?

 

[GeoR]

Not 100 % sure , looks like but its definitely not stock rear suspension on it

 

[Qdub24]

Looks like regular old Monroe shocks, not air shocks. Judging by the appearance, I'd definitely replace them.