Can be used for uprights with 1050 full ball bearing specifications. When the shafts are assembled, they enable a clean, smooth cornering as well as help in reducing speed loss. It is also possible to exchange these parts with those found in factory finished models, improving the car?s performance. Item Contents 44mm Swing Shafts 2 pcs. Can be used with the following chassis: TB-03, TA05, IFS-R: 53724, 51092 46mm Swing Shafts TRF416, TB Evo, 5MS: 54077, 54078 44mm Swing Shafts 53500 Cross Joints for Assembly Universal Shaft Set