B15, odd clunk noise

[Wade Jackson]

My transmission just started doing this on my B13 race car after paying someone to change the clutch.  Last night, I discovered that the firewall motor mount was not tight.  I tried to tighten it but the 17-mm bolt appears to be stripped.  

Anyone know what I should do to repair this?

---- Jeff Hager <submarinesammy at yahoo.com> wrote: 
> My wife's VW had a similar clunk when going from hard acceleration to lift throttle. It was a loose rear motor mount. FWIW.