To provide a manufacturing method for a rack guide wherein an outer rim side of a curved sliding plate piece is tightly fitted without a gap to a rack guide base substance, and which does not substantially cause a cost increase.

A rack and pinion steering device 1 comprises, a casing 3 including a hollow section 2, a steering shaft 6 rotatably supported by the casing 3 via ball bearings 4 and 5, a pinion 7 arranged in the hollow section 2 and integrally provided with a shaft end of the steering shaft 6, a rack bar 9 wherein rack teeth 8 meshing to the pinion 7 are formed, a rack guide 10 arranged in the hollow section 2 of the casing 3, and a coil spring 11 pressurizing the rack guide 10 toward the rack bar 9.