Toyota T100 Solid Spacer Kit with Preload Shims, Crush Sleeve Eliminator. Crush Sleeve Eliminator Solid Spacer Kit for Toyota 8.4" / T100 Rear. Yukon Gear & Axle manufactures a full line of top-quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers, and other general maintenance items. You can count on Yukon to fulfill all your differential small parts needs.