Like everything else, posi-traction devices such as the one that might be in your car do wear out. In your case, the posi uses a series of friction plates that are carried in the differential case and ...

There are lockers and knockers, limited slips and Sure Grips. Sometimes they're called Positractions and sometimes much worse. But this name game is really about the concept of pushing equal measures ...

Four-speed, Dual-quad, Posi-Traction Four-Oh-Nine.' If you get that reference, then you know something nice is cooking down below. All the more, it's from 1962, it wears a bowtie, and it has one very ...

Type: 3720 S, SA* (used after depletion of 3460 stock.SA was used from 11/63 through 11/64) 1100669, 42 Amp, Optional-all breakerless ignition 1100684, 60 Amp, Optional-all except 365hp with ...

IT’S 1969. YOU SIT IN A CHEVY dealership about to sign papers for a new L88 Corvette, one of the baddest cars on the planet. Without provocation, the salesman leans forward and says, “If you’re really ...

What would you do if the rearend in your '53-62 Corvette broke? Could you afford the parts--if you can find them? Or, maybe you're worried about breaking that numbers-matching original. Perhaps you're ...