I have a 1990 camaro 3.1. I saw this item in the jegs catalog for about a 100 dollars, I live in one of the biggest cities in the world(NY), should I buy this item to increase traction(imitate posi)? any opinions and comments are welcomed

 

No. mini-spools are not that strong and are designed for dirt track racing. When you go around corners with locked axles the outside tire will try to turn the same speed as the inside tire. Since it has a greater distance to travel it will skid across the pavement causing a lack of traction and increased tire wear.

On a dirt track that skidding isn't a factor.

The best thing for street use is some sort of locker diff. Things like a Detroit Locker will lock the axles together like a spool or mini spool but will unlock them when turning corners.

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87 IROC-Z Pro ET Bracket Race Car
383 stroker (carbed) with double hump cast iron heads and pump gas
461 Big Block installed and ready for the 2001 racing season

Best results before the 383 blew up
Best ET on a time slip: 11.857 altitude corrected to 11.163
Best MPH on a time slip: 117.87 altitude corrected to 126.10
Altitude corrected rear wheel HP based on power to weight ratio: 476.5
Best 60 foot: 1.662

Racing at 3500 feet elevation but most race days it's over 5000 feet density altitude!
Member of the Calgary Drag Racing Association

87 IROC bracket car, 91 454SS daily driver, 95 Homebuilt Harley