| U1 | TS26 | 129.60 | Front Crossmember, Chassis, Bonnet Support | Spitfire, 1962-80 (all), GT6, 1966-73 (all) |
| U2 | TS45L | 103.68 | Outrigger, Chassis Front, 'A Post Outrigger', LH | Spitfire, 1970 on (Mk IV & 1500 models) |
| U2 | TS45R | 103.68 | Outrigger, Chassis Front, 'A Post Outrigger', RH | Spitfire, 1970 on (Mk IV & 1500 models) |
| U3 | TS53L | 49.25 | Mounting Bracket, Body to Front Outrigger, LH | Spitfire, 1962-80 (all), GT6, 1966-73 (all) |
| U3 | TS53R | 49.25 | Mounting Bracket, Body to Front Outrigger, LH | Spitfire, 1962-80 (all), GT6, 1966-73 (all) |
| U4 | TS48 | 19.44 | Bracket, Front Quarter Valance | Spitfire, 1970 on (Mk IV & 1500 models), GT6, 1970-73 (Mk III models) |
| U5 | TS36L | 103.68 | Wheelarch, Front, Outer, LH | Spitfire, 1970 on (Mk IV & 1500), GT6, 1970-73 (Mk III) |
| U5 | TS36R | 103.68 | Wheelarch, Front, Outer, RH | Spitfire, 1970 on (Mk IV & 1500), GT6, 1970-73 (Mk III) |
| U6 | TS52AL | 123.12 | A Post Upper Assembly, LH, With Tapped Plates | Spitfire, 1962-80 (all), GT6, 1966-73 (all) |
| U6 | TS52AR | 123.12 | A Post Upper Assembly, RH, With Tapped Plates | Spitfire, 1962-80 (all), GT6, 1966-73 (all) |
| U7 | TS52L | 103.68 | A Post Lower Panel, LH | Spitfire, 1962-80 (all), GT6, 1966-73 (all) |
| U7 | TS52R | 103.68 | A Post Lower Panel, RH | Spitfire, 1962-80 (all), GT6, 1966-73 (all) |
| U8 | TS67 | 71.28 | Master Cylinder Shelf Repair, Dash Bulkhead Top | Spitfire, 1962-80 (all RHD models), GT6, 1966-73 (all RHD models) |
| U9 | TS43LHD | 71.28 | Battery Box | Spitfire, 1962-80 (all LHD models), GT6, 1966-73 (all LHD models) |
| U9 | TS43RHD | 71.28 | Battery Box | Spitfire, 1962-80 (all RHD models), GT6, 1966-73 (all RHD models) |
| U10 | TS22L | 257.90 | Floor, Main, Repair, Centre Tunnel to Sill, LH, 'Half Floor' | Spitfire, 1962-80 (all), GT6, 1966-73 (all) |
| U10 | TS22R | 257.90 | Floor, Main, Repair, Centre Tunnel to Sill, RH, 'Half Floor' | Spitfire, 1962-80 (all), GT6, 1966-73 (all) |
| U11 | TS25 | 32.40 | Centre Crossmember, Repair, Tunnel to Sill, 'Half Crossmember' | Spitfire, 1962-80 (all), GT6, 1966-73 (all) |
| U12 | TS18L | 71.28 | Sill, Inner, LH | Spitfire, 1962-80 (all), GT6, 1966-73 (all) |
| U12 | TS18R | 71.28 | Sill, Inner, RH | Spitfire, 1962-80 (all), GT6, 1966-73 (all) |
| U13 | TS17L | 38.88 | Reinforcement, Sill, Inner, LH | Spitfire, 1962-80 (all), GT6, 1966-73 (all) |
| U13 | TS17R | 38.88 | Reinforcement, Sill, Inner, LH | Spitfire, 1962-80 (all), GT6, 1966-73 (all) |
| U14 | TS54 | 129.60 | Heelboard Panel, Main Floor Rear | Spitfire, 1962-80 (all), GT6, 1966-73 (all) |
| U15 | TS62 | 194.40 | Crossmember, Rear Seat Pan to Heelboard | Spitfire, 1962-80 (all), GT6, 1966-73 (all) |
| U16 | TS55 | 123.12 | Mounting Bracket, Rear Suspension to Heelboard | Spitfire, 1962-80 (all), GT6, 1966-73 (all) |
| U17 | TS50L | 181.44 | Wheelarch, Rear, Outer, LH | Spitfire, 1970 on (Mk IV & 1500 models), GT6, 1970-73 (Mk III models) |
| U17 | TS50R | 181.44 | Wheelarch, Rear, Outer, RH | Spitfire, 1970 on (Mk IV & 1500 models), GT6, 1970-73 (Mk III models) |
| U18 | TS64L | 257.90 | Wheelarch, Rear, Inner, LH | Spitfire, 1962-80 (all), GT6, 1966-73 (all models, does not include shock absorber bracket found on Rotoflex suspension models) |
| U18 | TS64R | 257.90 | Wheelarch, Rear, Inner, RH | Spitfire, 1962-80 (all), GT6, 1966-73 (all models, does not include shock absorber bracket found on Rotoflex suspension models) |
| U19 | TS51L | 71.28 | Rear Inner Wing Repair, LH, 'Inner Wing Rear Lower Quarter' | Spitfire, 1970 on (Mk IV & 1500 models), GT6, 1970-73 (Mk III models) |
| U19 | TS51R | 71.28 | Rear Inner Wing Repair, RH, 'Inner Wing Rear Lower Quarter' | Spitfire, 1970 on (Mk IV & 1500 models), GT6, 1970-73 (Mk III models) |
| U20 | TS30 | 259.20 | Floor, Boot, One Piece, Full Width | Spitfire, 1962-80 (all), GT6, 1966-73 (all) |
| U21 | TS40 | 32.40 | Spare Wheel Bracket, Boot Floor | Spitfire, 1970 on (MkIV & 1500 models), GT6, 1970-73 (Mk III models) |
| U22 | TS58 | 32.40 | Pivot Bracket, Radius Arm, Not Handed | GT6, 1968-72 (all Mk II models, plus 1970-72 Mk III models with Rotoflex suspension, not 1973 Mk III models with swing spring suspension) |
| U22 | TS59L | 51.84 | Pivot Bracket, Radius Arm, LH | Spitfire, 1962-72 (all Mk I 'Spitfire 4', Mk II, Mk III, Mk IV models up to VIN FH50000 with early type radius arms) |
| U22 | TS59R | 51.84 | Pivot Bracket, Radius Arm, RH | Spitfire, 1962-72 (all Mk I 'Spitfire 4', Mk II, Mk III, Mk IV models up to VIN FH50000 with early type radius arms) |
| U22 | TS60L | 45.36 | Pivot Bracket, Radius Arm, LH | Spitfire, 1973 on (Mk IV from VIN FH500001 on with late type radius arms, all 1500) |
| U22 | TS60R | 45.36 | Pivot Bracket, Radius Arm, RH | Spitfire, 1973 on (Mk IV from VIN FH500001 on with late type radius arms, all 1500) |
| U23 | TS61 | 7.78 | Shim, Radius Arm Pivot Bracket, Selective Fitment | Spitfire, 1962-80 (all), GT6, 1966-67 & 1973 (all Mk I models, plus 1973 Mk III models with swing spring suspension) |
| U24 | TS311589 | 324.00 | Fuel Tank Assembly | Spitfire, 1962-70 (All Mk I 'Spitfire 4', Mk II & Mk III, except North American Spec Mk III) |
| U24 | TS3395 | 324.00 | Fuel Tank Assembly | Spitfire, 1970 on (Mk IV & 1500, except North American Spec models) |
