[s13dan]

Ok so i blew out my old vlsd, that one did work.. if i pop the clutch and power braked it both tires would light up.. and when launching it worked most of the time, every once and awhile it would go on vacation or somthing.. anyway i got a VLSD from a junkyard today.. put it in and tired it out.. 9 times out of 10 it is 1 tire fire when i power brake and launching pretty much sucks all together.. can i fix my current one? how does a VLSD go bad i thought they just broke but didnt really wear out... i have 29 days left to take it back...