- Superior Quality. That's what The Larson Group (TLG) is all about. TLG has been offering the best of the best for almost twenty five years now as a Peterbilt dealer group. Peterbilt is unparalleled in the trucking industry for its performance and reliability. Larson's have applied that same commitment to quality and attention to detail throughout their entire operation. TLG has built a team of qualified, highly trained professionals to walk with you every step of the way. TLG offers a full range of services from sales, service, parts, body shop, finance, rental, leasing, as well as contract maintenance. You can know that you will receive the highest of care.