differential and drivetrain
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ring pinion sets ring pinion set part #1312-27-110a ring pinion sets part number m068-27-110a m054-27-110a 1312-27-110a 1480-27-110 m055-27-110a m066-27-110a p092-27-110b p061-27-110 p0a5-27-110a 0662-27-950a new competition part code ssccsscsc req 1 1 1 1 1 1 1 1 1 1 description ring pinion set 4.11 ratio ring pinion set 4.44 ratio ring pinion set 4.875 ratio ring pinion set 5.125 ratio ring pinion set 4.11 ratio ring pinion set 4.33 ratio ring pinion set 4.33 ratio ring pinion set 4.10 ratio ring pinion set 4.33 ratio ring pinion set 4.875 ratio nt non-turbo model engine type rx7 miata rx7 miata rx7 miata rx7 miata rx7 nt rx7 nt rx7 t rx7 tt rx7 tt miata 1.6 t turbo year notes 1979-85 short pinion design also fits rx2 rx3 sp 1994-97 1979-85 short pinion design also fits rx2 rx3 sp 1994-97 1979-85 short pinion design also fits rx2 rx3 sp 1994-97 1979-85 short pinion design also fits rx2 rx3 sp 1994-97 1986-91 1986-91 1987-91 1993-95 1993-95 1990-93 requires special
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ring pinion information mazda offers optional gear sets that can be used for the early rx7 1979-85 rx2 all and rx3 sp 1977-78 these models use short pinion gear sets rx3 models except those of sp variety use a long pinion shaft the pinion shaft is approximately 2-3/8 longer than the short pinion shaft version there are two 2 alternate gear sets available from the factory that will fit the long pinion differential case please call for information about these ring and pinion sets ring pinion sets for the rx7 1986-91 have the longest pinions of any differential mazda produced the normally aspirated rx7 s ring pinion set is not interchangeable with the turbo gear set the only alternate gear set available for the rx7 1986-91 non-turbo is a 4.33 ratio which came in the limited edition 1989 gtus model using a lower ratio gear set improves acceleration and torque a higher number means a lower ratio to help calculate the proper gear set for your racing application please use the f
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differential components 4 8 3 4 2 6 7 1 4 8 3 1 4 2 2a 5 7 6 d-4 1986-91 rx7
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differential components item no 1 1 part number 4352-27-171 0305-27-171 code req c s 1 1 description tube crush tube crush model engine type 12a 13b 12a 13b rx7 rx7 t rx7 nt miata 1.8 rx7 tt miata 1.6 12a 13b 12a 13b rx7 nt miata 1.8 rx7 t rx7 tt miata 1.6 rx7 nt rx7 t 12a 13b rx7 rx7 nt rx7 t miata 1.8 rx7 tt miata 1.6 12a 13b rx7 nt miata 1.8 rx7 t rx7 tt miata 1.6 12a 13b rx7 rx7 rx7 nt rx7 t rx7 tt miata 1.6 miata 1.8 t turbo year all 1971-78 1979-85 1987-91 1986-91 1994-97 1993-95 1990-93 all 1971-78 1979-91 1994-97 1987-91 1993-95 1990-93 notes for competition unit only 1 1 1 2 2 m035-27-171 r004-27-171 t020-27-171 0540-27-210 0755-27-210 ssscs 1 1 1 1 1 tube crush tube crush tube crush bearing front pinion bearing front pinion for use in competition differential only 2 2 2a 2a 3 3 0604-27-220 3919-27-220 m055-27-143 p016-27-143 0221-27-210 m025-27-210 ssssss 1 1 2 2 1 1 bearing front pinion bearing front pinion bearing drive pinion front bearing drive pinion front beari
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differential components 4 continued 8 3 4 2 6 7 1 4 8 3 1 4 2 2a 5 7 6 d-6 1986-91 rx7
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differential components continued item no 6 part number 0223-27-030 code req s 1 description nut lock model engine type 12a 13b rx7 nt t rx7 tt miata 1.8 miata 1.6 12a 13b rx7 nt t rx7 tt miata 1.8 miata 1.6 12a 13b rx7 nt t miata 1.8 rx7 nt rx7 nt rx7 nt rx7 t rx7 tt miata 1.6 miata 1.8 t turbo year 1971-78 1979-91 1993-95 1994-97 1990-93 1971-78 1979-91 1993-95 1994-97 1990-93 1971-78 1979-91 1994-97 notes 6 7 3919-27-130 0223-27-012 s s 1 1 nut lock washer 7 8 3919-27-012 0223-27-401a s s 1 1 washer spacer 3.08 mm 8 8 8 8 8 8 8 8 8 8 8 8 8 0223-27-402a 0223-27-403a 0223-27-404a 0223-27-405a 0223-27-406a 0223-27-407a 0223-27-408a 0223-27-409a 0223-27-411a 0223-27-412a 0223-27-413a 0223-27-414a 0223-27-415a f003-27-238a m0a2-27-238 m0a1-27-238 p016-27-238 p043-27-238 t020-27-238 ma02-27-238 new competition part ssssssssssssssssssss 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 spacer 3.11 mm spacer 3.14 mm spacer 3.17 mm spacer
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torsen limited-slip differential part #mm02-27-200a limited-slip differentials part number 0820-79-970b code c req 1 description mechanical l/s model engine type 12a 13b rx7 year notes 1971-78 cam-actuated mechanical limited-slip unit 1979-85 will fit stock case with minor modifications.see installation and maintenance notes on page tt-31 1986-91 stock l/s from early models 1984-91 torsen type 1 unit from 1994-95 miata 1994-97 can be fitted to 1986-91 rx7 non-turbo models may also be used on 1984-85 rx7s 12a &13b 1984-91 torsen type 2 unit from 1997 miata type 1994-97 2 torsen unit has a slightly higher bias ratio than type 1 units and is less expensive see notes for part #mm01-27-200 above 1987-91 replaces stock turbo mechanical or viscoustype limited-slip units 1987-91 stock limited-slip from 1987-88 turbo can be used in place of 1989-91 viscous unit 1993-95 1990-93 easy bolt-in fitment to non-viscous limited1988-89 slip miatas replacement of viscous-type differential requir
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limited-slip differential replacement parts 10 11 8 11 10 differential drive train limited-slip differential replacement parts item no 10 10 10 10 11 11 11 11 11 11 11 11 part number 0221-79-977 m020-27-258 p020-27-258 t0y1-27-258 0221-79-977 0221-79-978 m020-27-256 m020-27-257 p020-27-256 p020-27-257 t0y1-27-256 t0y1-27-257 new competition part code req csscccsssscc 4 4/6 2 4 4 4 4/2 4/2 4 4 4 4 description plate friction plate friction plate friction plate friction disc friction 2.0 mm disc friction 2.06 mm o/s disc friction 2.0 mm disc friction 2.1 mm o/s disc friction 1.75 mm disc friction 1.85 mm o/s disc friction standard disc friction o/s model engine type 12a 13b rx7 nt rx7 t miata 1.6 12a 13b 12a 13b rx7 nt rx7 nt rx7 t rx7 t miata 1.6 miata 1.6 t turbo year all notes for competition limited-slip only 1981-88 quantity required 1981-85 rx7 4 1986-88 rx7 6 1987-88 1990-93 for competition limited-slip only all all for competition limited-slip only for competition lim
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limited-slip differential replacement parts continued 12 8 13 12 13 limited-slip differential replacement parts continued item no 12 12 12 12 12 12 12 12 13 13 part number 0221-79-987 code req c description washer thrust 1.47 mm washer thrust 1.68 mm o/s washer thrust 1.6 mm washer thrust 1.8 mm o/s washer thrust 1.5 mm washer thrust 1.6 mm o/s washer thrust 1.77 mm o/s washer thrust spring conical spring conical model engine type 12a 13b 12a 13b rx7 nt rx7 nt rx7 t rx7 t rx7 t miata 1.6 rx7 nt miata 1.6 t turbo year all all 1981-88 1981-88 1987-88 1987-88 1987-88 notes for competition limited-slip units only for competition limited-slip units only 2 2 2 2 2 2 2 2 2 2 0221-79-988 m020-27-252 m020-27-253 p020-27-252 csssp020-27-253 p020-27-254 t0y1-27-265 m020-27-259 t0y1-27-259 new competition part sscsc 1990-93 for competition limited-slip units only 1981-88 1990-93 for competition limited-slip units only t t twin-turbo 93-95 rx7 nt non-turbo d-10
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drivetrain miscellaneous part number 4352-25-100 code c req 1 description 2-piece driveshaft model engine type various year various notes designed to remove the resonant frequency and harmonics from the working range of driveshaft speed for gt applications for transmission fitted with competition extension housing needle bearings not recommended for use with transmission bushing center support bearing for competition two-piece driveshaft replacement u-joint for use on rx2 rx3 rx4 and early rx7 models 1979-83 with serviceable driveshafts also fits competition 2-piece driveshaft 4352-25-130 c 1 hardened sliding yoke various various 4352-25-300 8bb1-25-060 c s 1 2/4 center support bearing universal joint various various various various d-11 differential drive train
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