Here is the auction listing for 5R106
https://www.mecum.com/lots/FL0121-444464/1965-shelby-gt350r-fastback/SFM5R106
4,930 miles
One of only 34 production R Models
Delivered new to Jack Loftus Ford in Hinsdale, Illinois
Owned and raced by original owner Dick Jordan for 21 years
Campaigned by Jordan at Road America, Lynndale Farms, Clermont and Wilmot Raceway
Exacting restoration to original competition specs using only original and NOS service parts as needed
Original 289/325 HP V-8 engine
Holley 4-barrel carburetor
Cobra high-rise intake manifold
Tri-Y headers
Oil cooler and high capacity radiators
Borg Warner T10 M 4-speed transmission
Ordered with a 4.11 rear end
Independent front suspension with coil springs
Live rear suspension with leaf springs
Front disc brakes
Fiberglass front body apron
Brake cooling ducts
Original plexiglass windows
Wimbledon White with Black interior
American Racing 15x7 wheels
Detailed history listed in the Shelby Registry
One of only 37 examples of Carroll Shelby’s all-conquering GT350R SCCA B Production racers, Serial No. 5R106 was raced by its first owner, Richard Jordan of Downers Grove, Illinois, for an incredible 21 years in Midwest SCCA national events. Its second owner, Paul Zimmons of Potomac, Maryland, restored 5R106 after purchasing it in 1987, winning the Gold Award in the Competition Class at SAAC-18 at Watkins Glen in 1993. In 2000, the car earned Second Place Popular Vote at SAAC-25 at Lime Rock Park. Subsequent owners, including such prominent collectors as Dave Christenholz and noted Shelby expert and author Colin Comer, have carefully maintained this extraordinary R-model as it was first raced at Road America in 1965, employing only its original factory components and NOS parts as required. With 4,930 original miles on the original engine and drivetrain, 5R106 remains in astonishingly original condition, retaining such important features as the original Plexiglas and R-model magnesium racing wheels. Fully race-ready and offered with unusually extensive documentation that includes the original Shelby American and Jack Loftus Ford paperwork, 5R106 presents as exceedingly original, authentically restored and factory correct in every detail, making it a marvelous example of a perennial American racing classic.