I have an '57 truck differential in my '49 truck housing which is a conversion from closed to open driveshaft. Is there a limited slip differential aka positraction 3rd member available for this set-up? I'm wanting more traction for the limited snow we get here in the Virginia winters. Thanks, Cosmo.

'49 Chevy 1/2 ton, '56 235, 848 head, Fentons, x-pipe, 1-2bbl H-W.