I`m copying Bretts list of differences from another post, where he incorporates Jims list...
Jim's list with a few of these added: 1. Vent windows 2. Front marker lights 3. Grills (color) 4. Fender extensions 5. Front grills (color,67 silver) 6. Hood latch 7. Hood (latching point) 8. Fender emblems 67 not tapered 9. Harmonic balancer 10. Intake manifold 11. Carb 12. Throttle rod in 67, Cable in 68 13. Motor (67 - 326 to 68 - 350 ) 14. Heads 15. Air filter 16. Hood tach 17. Windshield washer pump 18. Doors 19. Door panels 20. Side mirror (round to square) 21. Convertible header chrome (68 dull finish ) 22. Pillar post trim (67 Chrome with deluxe ) 23. Speedometer (67 120mph - 68 160mph 48. Gas Door Lift 24. Vent balls (67 AC Only) 49. dash pad 67 flat 25. steering wheel 27. Woodgrain on dash 28. Console(67 colored, Rear ashtray & rear light) 29. Door Hinge 30. Door Glass 31. Shifter (67 rod, 68 cable) 32. Shifter (handle) 33. Lock pulls and ferules 34. Windlass end caps 35. Temp control panel lens 36. Inside Mirror Bracket 37. Fold Down Latches 38. Fold Down Partition 39. Rear side Panels INT. 40. Quarter dome Light (67) 41. Console Shift Plate 42. LH. Rear Wheel House 43. LH. Rear Shock Tower 44. Shocks (67 Non Staggered) 45. Shock Mounting Plate 46. Springs (67 Mono ) 47. Rear Side Marker (68 Only) 48. Clock face color 49. Dash face color 50. TVS - Thermal Vacuum Swtch in 68 51. Subframes 52. tie rod ends (outer?)drag link 53. door jam vents (67 HT did not have them) 54. 68 had neutral safety switch 55. deck lids had different holes punched on inner frame 56. And Bird glass on some 68's!
Yes the 67/68 clock faces are slightly different.
Yes Jim, the TVS started in 68... But I'm not sure about the A.I.R. (air injection reactor) or smog pump systems, were they 67 Cali only in that form?
A.I.R pump on an original 67
The Glove box emblem was also for 67... but may be different?
Door lock pulls are larger diameter in 68 than in 67 and the ring they go through is a small clear plastic one in 67, chrome and larger in 68.
Rear console ashtray and light in 67...
And other obvious console differences for 68 as mentioned...
I think the fold down rear seats had different latches in 67 than in 68?
How long were the windshield washer bottles Black? I know the 67's should have had the black bottles.
I'm sure I'll think of more... yes, we'll have to do 67 VS 68, then 68 VS 69 as far as the differences go...