A mini spool replaces the spider gears inside the carrier. It locks the 2 axles together so they will always turn at the same speed. When going around a corner a differential allows the outside wheel to turn faster than the inside one. If the axles are locked, usually the outside wheel will slide across the pavement since it's turning at the same speed as the inside wheel. This is hard on tires and axles.
A mini spool is a cheap counterpart to a full spool. A full spool does the same thing however it replaces the complete carrier making it much stronger. The mini spool can be installed in a few hours in the driveway since it just replaces the spider gears.
There are no full spools available for the 7.5/7.625 10 bolt and unless the manufactures have added new stock, the only mini spools available for the 10 bolt is 26 spline. The main problem being that our small 10 bolt diffs are not considered performance parts and because of this, parts like spools and mini-spools are just not created for them.
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Follow my racing progress on
Stephen's racing page
and check out the
race car
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
