Axle Spring Seats Part No. Use With: 3-49 1 3/4” Round Axle 3-43 2 3/8” Round Axle 3-42 3” Round Axle 3-48 3 1/2” ROUND AXLE 3-51 4” ROUND AXLE 3-72 5” Round 10K Axles w/ 2 1/2” Wide Springs 3-66 5” Round Axles w/ 3” Wide Springs
