West Side Tractor Sales Co. will now offer Trimble's advanced technology for John Deere earthmoving equipment, including grade control and site positioning systems. The company has been named the newest authorized technology outlet for Trimble in Illinois, Indiana, and Michigan, according to Construction Digest. West Side Tractor, a family-owned business with a long history in the Chicago area, was founded in 1962. The company, now run by the third generation of the Benck family, has five family