Elbow, Manifold Used w/ NAA5230E muffler.    Dim A (1): 2 Bolt Hole    Dim B (2): 1 5/8" O.D. Outlet Ford / New Holland Tractor NAA (W/ 134 & 172 CUBIC INCH GAS ENGINE) 2000 (W/ 134 & 172 CUBIC INCH GAS ENGINE) 600 SERIES (W/ 134 & 172 CUBIC INCH GAS ENGINE) 700 SERIES (W/ 134 & 172 CUBIC INCH GAS ENGINE) 800 SERIES (W/ 134 & 172 CUBIC INCH GAS ENGINE) 900 SERIES (W/ 134 & 172 CUBIC INCH GAS ENGINE)
