Tar-like substance on coil springs

[DBPA2024]

Yeah, the engine bay is super clean. The previous owner had the whole car washed regularly and thoroughly. Looks like the degreaser could have destroyed these rubber boots. As I am looking for a mild lift kit (max. 4") I will have the suspension checked anyway.
Are these rubber boots necessary and should I look for replacement?

 

[Joseph Garcia]

The rubber boots keep dirt particles from getting into the stock's piston and damaging the seal. Yes, you should have a boot to protect against this.

 

[petethepug]

Whenever you do the lift on the the truck they’ll replace the boots. Good catch. It’s in really good condition for Panama’s exotic weather.