An angular adjusting mechanism for a headlamp assembly having a rigid two piece press fit molded gear housing assembly. The housing accepts a pair of angularly disposed bevel gears including a drive shaft and drive gear with the drive shaft journaled in a bore in one of the housing sidewalls and the drive gear positioned within the housing and bearing on the interior of the housing sidewall. A tubular nut and an adjusting gear engaging said drive gear with the tubular nut journaled in a second sidewall bore and said nut telescopically accepting an elongated adjusting screw which is axially adjusted when the tubular nut is rotated by the adjusting gear.
