Some of these might be customer aircraft specific -
32. Fuel capacity different between each model.
33. Cockpit size. 767 originally designed for 3 pilots. Early model 767-200's had a really nice sized cockpit. About 3' more space in rear portion of the of cockpit.
29. (corrected?) Air conditioning system has 3 isolation valves 767 and one on the 757.
34. 767 has switch to regular cargo heat in a narrower temperature range (animals in cargo hold)
35. Cockpit shoulder/foot heat different. 767 in flight only. 757 foot heat works on the ground(doing more preflights...
)
36. PTU (hydraulic Power Transfer Unit) - 757 for nose wheel steering. flaps/slats, landing gear, HDG(hyd driven generator). 767 PTU - stabilizer trim only
37. Anti ice - 757 - three leading edge slats just outboard of the engines
767 - outermost 3 slats
38. Older 767-200's don't have enough bleed air from engine for anti-ice at idle power so power must be monitored to ensure engine anti-ice operation during descent.
39. 757 has three cabin zone temperature controls. 767 has 4.
40. 757 has two models -200/-300. 767 has three models -200/-300/-400.
41. 757 has one aisle. 767 has two.
42. 757 has standard toilet system. 767 has suction system.
43. 757 refueled right wing. 767 left wing.
44. Fuel temp read right wing 757, left wing 767.
45. (44. tied to hydraulic coolers - 757 one in right wing, two in left wing. 767 = 1 in left wing, 2 in right wing)
46. Stabilizer trim - 757 = C and R hyd systems. 767 = C and L hyd systems.
47. 757 cockpit air comes from the left pack. 767 cockpit air comes from the mix manifold.
48. 757/767 'BLEED' warning lights have different meanings
(at least with our engines)
49. 767 has cargo heat switches. 757 is automatic.
50. 757 nose wheel steering, with rudder pedals, is 1 degree greater 767.
51. Alternate and reserve brakes get hydraulic pressure from different sources (757 vs. 767).
52. Antiskid protection different between 757/767 while using reserve brakes.