I have a 1979 450 SL that seems to have a clunking noise (it sounds like from the rear) when I first take off and only if I try to leave a little hard, if I drive off slow it does not make the noise. It will not do this in any other gear but from first to second, only when I first drive off, all shifting seems to be very tight (no slipping) if i start to hear it and I get out of the throttle it will stop.
Any HELP would be appreciated.

is your tire slipping?

if so you may be experiencing wheel hop. this can be caused by a worn shock or by loose rear suspension bushings.

tom w

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.