I have a 1986 Dodge van B 150 1/2 ton 318 engine auto trans 8.25 rear axle. I am in hope you all can help me figure out a problem that has me very stumped. First I will list the symptoms and then what has been already changed/repaired.
It started with turning to the right from a dead stop I could feel a grinding sensation from the rear .... along with a thud when breaking ... when coming to a stop and not letting off the brake till I could go .. once off the brake and moving forward I would hear/feel a thud from the back end almost like being bumped in the back end. It also will do this at speeds of 10mph at times but not while changing gears. It feels like a slam in the back. Also upon heavy acceleration forward the grinding is there ... not just to the right anymore.
Now here is what has been done.
Both sets Ujoints changed
Spider Gears replaced
Trans mount checked
Brakes checked for grease on shoes
After changing the spider gears it has helped .... but upon heavy acceleration it still has a grinding feeling ... and I still have the thud ... the rear gears all looked good the spiders were worn so changing them out was well worth it .... what am I missing here? where could the thud and the left over graind be coming from?
Thanks in advance for the help and ideas!!
Dave