[Shop-talk] Brake issue on mason dump

[ERIC RUSSELL]

No idea about your 98 but my Dad had a mid-70's Chevy flatbed. There was a valve in the rear brake line that was actuated by the weight in the bed. (when the weight caused tbe rear of the truck to compress the suspension) 

Eric Russell
Mebane NC 

----- Original Message -----
 At the exit ramp, the brakes felt spongy and 
the truck wasn't stopping normally.  Then, all of a sudden, I felt a jolt 
and the brakes worked normally.  
even ended up going down a 15% grade with the load and no issues.

Question, what do I need to check?