TM 9-2520-246-34-1 g. Front Output Shaft (Model T-136-21). NOTE Sprags (1) have two notches, one large and one small notch. Ring (2) fits in small notch and spring (3) fits in large notch. Tips of all sprags (1) must face the same way. FRAME 1 1. Put four sprags (1) into place on ring (2) as shown, 2. Put spring (3) into slots in sprags (1) as shown. 3. Do steps 1 and 2 again for rear sprag unit. GO TO FRAME 2 2-243