Thank you for the reply. The spark plugs were changed when I had it in the shop so unfortunately it’s something other than that. Again thank you for chiming in though.

 

Did it make the sound before they changed the plugs ?
Mall the more reason to check in my opinion these are not easy plugs to change and one can easily miss tightening one down.

 

Yes, sorry about that, it was making the same exact noise and had the same kind of thump thump thump idle even before the plugs were changed.

 

I’d like to know how to make my LSD grab faster. Would I have to add clutches? I’m not even sure it’s a clutch type LSD. Are there any additives that will do the trick to some extant ? I read an aftermarket company selling LSDs say the mb is a low % grab, forgot #s , they wanted to sell a “better” one. I don’t want to change the whole rear end just get a bit more grab on #2 tire.