Model Trucks › HENDRICKSON RS 500/650 TANDEM SUSPENSION, RS-22 Image 1 of 1 HENDRICKSON RS 500/650 TANDEM SUSPENSION, RS-22 $12.00 1/25TH SCALE CAST RESIN SUSPENSIONOUT OF PRODUCTION REAR SUSPENSION, 2 PCS. BY AITM Add To Cart Added! 1/25TH SCALE CAST RESIN SUSPENSIONOUT OF PRODUCTION REAR SUSPENSION, 2 PCS. BY AITM