Would 3x6s climb ok i have been told for a few years now that 3x3s climb better but i traded for some 3x6s would it be worth changing my buggy to run porsche joints i got the axles.

What engine are you running? ,, the 3x6 might work better on a WC engine with the added weight and motor being further rearward. You will probably need porsche 930 cv's at that angle too.

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If your clutch ain't slippin,, you probably got it adjusted right!!!!!

If they are 6" longer move the engine and transaxle back 2"-4 ". Set up with droop the extra travel should follow the terrain a lot better than stock arms.
x2 on the 930cvs.

There is a guy that runs 3x6s and he is set up just like mine but he runs bus joints the only thing he had problems with was the suspension being strong enough im lookin at shocks and what not to accomadate for the extra leverage