Posi-traction is GM's name for a limited slip differential and is very common. The wheel with the most traction will turn. A locking differential acts like differential lock on a tractor where power to goes to both wheels equally. Not the same as posi-trac. Many people have confused posi-trac for a locking differential and claimed it was better than Fords limited slip. They are exactly the same thing. I don't know if new trucks come with a locking diff. option? They have traction control but that mostly limits engine RPM's so you don't spin the tires so fast. Steering is affected with a locking differential but a lot of guys with hot rods weld up the diff. gears to make it a full time locking diff. You get tire scuffing on tighter turns. There are some really fancy traction control systems on high end vehicles too.
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Today's Featured Article - Show Coverage: Central Illinois Strawberry Festival - by Cindy Ladage and Janna Seiz. Every year the coming of summer is highlighted by different events for different people. For some, it is heralded with the end of school, tilling the garden, or completion of the planting season. To us, connoisseurs of find food, antique tractors, farm toys, crafts, and downright fun, the annual Strawberry Festival means summer is here. Every year, in Carlinville, Illinois, the Macoupin County Historical Society and the Macoupin Agricultural Antique Association team up to fill th
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