i have a 95 4x4 chevy blazer 4.3 vortec. recently it feels like i have axle bearings out but now both are doing and only shakes when i accelerate or comming to slow down also my shocks plastic cover got melted by the exaust could that make it do it as well? most likely ill have to pull it off to see but anyone have any other ideas it could be?

 

i ended up replacing rear rotors,pads,calipers,shocks, outter axle bearings/seals and STILL have a shake back there lol gonna order all new bushings for the leafsprings/shackles when i install my lift shackles