Contributed By: the Members of the IZCC
Produced by: Carl Beck IZCC #260Special Thanks to: Steve Golik-IZCC #356, Tom Bell-IZCC #2802 & Ross Corrigan-IZCC # 255

Standard Differentials & Rear Gear Ratio's
Standard Rear End's as Delivered From The Factory 1969-1989 :
240Z 70-73 MT (3.364) (R180) 240Z 70-73 MT 5spd. (3.900) (R180) - non US 240Z 71-73 Auto (3.545) (R180) 260Z 74 MT (3.364) (R180) 260Z 74 Auto (3.545) (R180) 280Z 75-76 (3.545) (R200) 280Z 77-78 MT (3.545) (R200) 280Z 77-78 Auto (3.545) (R180) 280ZX 79 MT,4 Spd,2 Seater (3.364) (R180) 280ZX 79 MT,5 Spd,2 Seater (3.364) (R180) 280ZX 79 All With Automatic(3.545) (R180) 280ZX 79 MT,4 Spd,4 Seater (3.364) (R200) 280ZX 79 MT,5 Spd,4 Seater (3.7) (R200) 280ZX-GL 79 (3.7) (R200) 280ZX 80 MT,2 Seater (3.545) (R180) 280ZX 80 Automatic 2/4Seat (3.545) (R180) 280ZX 80 MT,4 Seater (3.9) (R200) 280ZX-GL 80 (3.9) (R200) 280ZX 81-83 Automatic all (3.545) (R180) 280ZX 81-83 Turbo - all (3.545) (R200) 280ZX 81-83 MT (3.9) (R200) - - - - 300ZX's - - - - - -- - 300ZX 84-86 MT and A/T (3.7) (R200) 300ZX 84-86 Turbo MT and A/T (3.54) (R200) 300ZX 87-89 MT and A/T (3.9 ) (R200) 300ZX 87-89 MT and A/T (3.9 ) (R200) 300ZX 87-89 Turbo MT and A/T (3.7 ) (R200) Note Turbos: #1) after 4/87 only-(3.7 Clutch Type LSD) 2) 88 All White SS used a 3.7 Viscous Coupling LSD) 3) LSD Unites Came With Finned Rear CoversAdditional Comments: a) Viscous Coupling LSD requires special splined half shafts - b) 84-87 R200's can be used in earlier cars, but require modifications they are not direct bolt in swapable to 240/260/280Z/280ZX's c) 84-89 R200's used a 12mm bolt in the ring gear - earlier R200 used a 10mm bolt in the ring gear, so you can not swap Gear Sets with the older R200's
Standard Transmissions & Gear Ratio's
70/71 three piece case U.S. Non-U.S. F4W71A FS5C71A 1. 3.549 2.957 2. 2.197 1.858 3. 1.420 1.311 4. 1.000 1.000 5. n/a 0.852 RearGear 3.364 3.9001972 through 1976 Factory Four/Five Speed Transmission Ratios
72/76 two piece case U.S. Non-US F4W71B FS5C71B 1. 3.592 2.906 2. 2.246 1.902 3. 1.415 1.308 4. 1.000 1.000 5 n/a 0.864 RearGear 3.36 3.900 (72 thru 76)1977 through 1983 Factory Four/Five Speed Transmission Ratios Note: Ratios in 4spd.'s are the same as 5spd.'s For 1st-4th gears.
77-79 1980 81-83 Borg Warner T-5 {Turbo Only] 1 3.321 3.062 3.062 3.500 2 2.077 1.858 1.858 2.144 3 1.308 1.308 1.308 1.375 4 1.000 1.000 1.000 1.000 5 0.864 0.773 0.745 0.780 1984 Through 1989 Factory Five Speed and Auto Trans. T5 Nissan FS5w71c auto auto turbo turbo non-turbo non-turbo turbo 84-86 87-89 84-89 87-89 87-89 1 3.350 3.324 3.321 2.458 2 2.056 2.077 1.902 1.458 3 1.376 1.360 1.308 1.000 4 1.000 1.000 1.000 5 0.752 0.711 0.759 R 3.153 3.382 3.636 2.400Special Note#1There was a 5 speed 720 truck('79-'85)transmission that will bolt into an L-6 car, that also has "lower" gearing. However, there were two other sets of different gear ratios available, depending on the truck model:
#1 #2 #3 1 3.592 3.321 3.592 2 2.246 2.077 2.057 3 1.415 1.308 1.361 4 1.000 1.000 1.000 5 0.813 0.833 0.813
Factory Competition Transmissions 77 - 83
There were Factory Competition 5-Speeds available through NISSAN Competiton Dept. There were two overdrive Transmissions, and four with the direct drive (1:1 in fifth gear)
#1 #2 #3 #4 #5 32010-N3130 2.906 1.902 1.308 1.000 0.864 (close ratio) 32010-N3030 3.321 2.077 1.308 1.000 0.864 (wide ratio) 32010-N3220 2.818 1.973 1.470 1.192 1.000 32010-N3221 2.348 1.601 1.296 1.138 1.000 32010-N3222 2.192 1.601 1.470 1.138 1.000 32010_N3201 3.321 2.270 1.601 1.240 1.000 (rally transmissions)Notes: The overdrive (FS5C71B) and direct drive (F5C71B) transmissions utilize the Servo-type (steel) snycro mechanism. For a complete parts breakdown of the listed overdrive and direct drive transmissions see the Nissan Motorsports Schematic catalog (99996-M8015). The shift kit (99996-E3030) is required when installing any of the listed transmissions into 240Z's built up to 8/71.
FS5C71A Conversions:
These parts will allow the FS5C71A 5-spd transmission from the Datsun 2000 (SLR311) roadster to be adapted to any Z. The R200 flang assy (38210-N3103) is required on Z's built from 12/74 to 7/75.
30401-22010 Clutch Housing 32130-A7100 Tail Housing 32241-A0200 Main Shaft 32890-A0100* Striking Rod Assy. 37000-E4100 Driveshaft (to 8/71) 37000-E8710 Driveshaft (from 9/71)
1990-96 300ZX Transmission For Both Turbo and NA.
The transmission model is RS5R30A.The 300ZX model is the same for both the NA and TT, but Nissan relocated the starter in the TT, and changed the outer and inner front cases.
1st 3.214 2nd 1.925 3rd 1.302 4th 1.000 5th 0.752 Reverse 3.369