Automobile transmission shaft and rear axle fit clearance checking method

A method for checking a fit clearance between an automobile transmission shaft and a rear axle belongs to the technical field of automobile transmission systems, and comprises the following steps: drawing a rear axle projection line; projection point taking and drawing are carried out according to the foremost limit position which the transmission shaft can reach when the gearbox is connected with the transmission shaft; drawing a spigot projection line of the end part of the transmission shaft, and enabling the spigot projection line to be parallel to the rear axle projection line; the method has the beneficial effects that the assembling process and the structural characteristics of parts are combined, the assembling clearance can be comprehensively, reliably and flexibly checked in a projection point taking and drawing mode, checking detection can be conducted in advance before real vehicle assembling, the assembling efficiency is improved, and the assembling efficiency is improved. And relevant parts are