Frankland Aluminum Spool - 31 Spline 4240RD which gives them about 1000%

which gives them about 1000% (that's ten times) better fatigue strength than those studs that are threaded prior to heat-treat (a very common industry practice)

2007-2007 Blue Bird Vision School Bus

See 4810-1 for a single guide plate

coil over spring (sold separately)

It's no wonder that Clevite 77 is used more often than any other bearings in cars worldwide and in most race cars

Frankland Aluminum Spool - 31 Spline 4240RD which gives them about 1000%Product Description: Spool 31 Spline Aluminum Frankland Tiger Richmond Quick Change Sold Individually The Frankland Superlite Quick Change Rear End is the best in the industry. Just ask around.