Hotchkis Sport Suspension 1513 58 - 64 Chevrolet B - Body Panhard Rod. Improve handling and traction on your 58 - 64 Chevrolet B - body by upgrading your flimsy stock pan hard rod with our adjustable model. Pan hard rods positively locate the rear axle and control lateral side - to - side movement. Our adjustable pan hard rod features greasable bushings grade 8 hardware TIG - welded construction and a durable powder coated finish. May not fit wagons. Please verify measurements. Specs The stock Chevrolet panhard bar center - to - center length is 31 - 12 in. The suggested maximum center - to - center length of the Hotchkis panhard rod is 32 in. The suggested minimum center - to - center length of the Hotchkis panhard rod is 31 in.