Having shifting problems with your manual transmission
Having shifting problems with your manual transmission poping out of gear or grinding going into the next gear while driving under
acceleration. This can be caused by damaged or worn synchro rings. Below we provide professional syncro ring kits for most popular manual transmissions. Ring kits are available for: Acura C3P4 G3T4,K4A6, S1 A1, Y80 GSR, RS LS GS AMC Borg Warner T5 World Class, Buick Saginaw 3 Speed, Saginaw 4 Speed, T10, M20, M21, M22. Chevrolet HM290, NV3500, Muncie M20, M21, M22, NV4500, SM465, NV3550, Borg Warner T5 World Class, A833, T10, T56 and Getrag 290. Chrysler NV1500 and A833. Corvette T56, Dodge A578, Getrag 360, Getrag HM290S NV3500, NV3550. Ford FM145, FM132, FM146, HED, M5TX, MTX75, SROD, RTS, TOD T176, HEH, RUG, TK5, T56, Tremec 3 Speed, T10, Borg Warner T5 and T5 World Class, T-19, M5R1, M5R2, M5TXA, RKE, T45, ZF-S542, ZF-S547, ZF-S650, T-18 and T98. Geo MV3, GMC HM290, NV3500, Muncie M20, M21, M22, NV4500, SM465, NV3550, Borg Warner T5 World Class, A833, T10, T56 and Getrag 290. Honda D2, L3, M2. International T18, T98, Isuzu MR8, MSG-5F, Jeep AX15, R151, Borg Warner T5 World Class, AX15, T18, T98. Kia, Mazda B2200, Miata, RX7 and 929. Mitsubish F5M21, F5M22, F5M33, W5M33, KM201,W5MG1 NV1500. Nissan FS5R30A, FS5R50A, FS4W71E, FS5W71C, FS5W71H and Hardbody Truck. Oldsmobile Muncie M20, M21,M22, Saginaw 3 Speed, Saginaw 4 Speed and T10. Plymouth NP833, NP833O/Dn NV1500 and T10. Pontiac Muncie M20, M21,M22, Saginaw 3 Speed, Saginaw 4 Speed and T10, Saturn, Suzuki, Toyota C50, L52, G52, AX5 W56 and W59. VW VW020. Need help selecting correct parts, just give us a call 800-216-1632 and let us help save you money!
Below is a brief explaniation of how syncronizer systems work: Beside each gear on the mainshaft is a syncro assembly (hub, syncro rings and slider), the hub is splined to the shaft and an 
outer ring that can slide over against each gear. The mainshaft gear and the ring of the hub have a row of teeth. Moving the shift linkage moves the slider against the adjacent mainshaft gear causing the teeth to interlock and solidly lock the gear to the mainshaft.
To prevent gears from grinding or clashing during engagement, a constant-mesh, a fully "synchronized" manual transmission is equipped with synchronizers. A synchronizer typically consists of an inner-splined hub, an outer sleeve, shifter plates, lock rings (or springs) and blocking rings. The hub is splined onto the mainshaft between a pair of main drive gears. Held in place by the lock rings, the shifter plates position the sleeve over the hub while also holding the floating blocking rings in proper alignment. It is important to inspect not only the syncro ring, but pay close attention to the slider and the shift forks for damage.
outer ring that can slide over against each gear. The mainshaft gear and the ring of the hub have a row of teeth. Moving the shift linkage moves the slider against the adjacent mainshaft gear causing the teeth to interlock and solidly lock the gear to the mainshaft. To prevent gears from grinding or clashing during engagement, a constant-mesh, a fully "synchronized" manual transmission is equipped with synchronizers. A synchronizer typically consists of an inner-splined hub, an outer sleeve, shifter plates, lock rings (or springs) and blocking rings. The hub is splined onto the mainshaft between a pair of main drive gears. Held in place by the lock rings, the shifter plates position the sleeve over the hub while also holding the floating blocking rings in proper alignment. It is important to inspect not only the syncro ring, but pay close attention to the slider and the shift forks for damage.
A synchro's inner hub/sleeve is made of steel, but the blocking ring -- the part of the synchro that rubs on the gear to change its speed -- is usually made of a softer material, such as brass. The blocking ring has teeth that match the teeth on the dog clutch. Most synchros perform double duty -- they push the synchro in one direction and lock one gear to the mainshaft. Push the synchro the other way and it disengages from the gear, passes through a neutral position, and engages a gear on the other side. We provide a full line of bearing, gasket and seal kits for all manual transmissions .
Syncro Ring Kits Manual Transmission Products
| PART # | MANUFACTURE | TRANSMISSION | DESCRIPTION | YOUR COST |
| DTS-SRK323 | Acura | C3P4 G3T4 | Legend Syncro Ring Kit | $94.96 |
| DTS-SRK392 | Acura | K4A6 | Legend Syncro Ring Kit 6 peed | $899.29 |
| DTS-SRK392A | Acura | K4A6 | Legend Syncro Ring Kit 2 Door Coupe | $876.99 |
| DTS-SRK350 | Acura | S1 A1 | Integra Syncro Ring Kit | $88.62 |
| DTS-SRK391 | Acura | Y80 GSR | Integra Syncro Ring Kit tapered diff bearing 72mm OD ball rear input brg. | $206.96 |
| DTS-SRK390 | Acura | Y80 RS LS GS | Integra Syncro Ring Kit | $141.91 |
| DTS-SRK149 | AMC | BW T5 W/C | Syncro Ring Kit 5 Speed World Class (Cast # 1352) | $403.98 |
| DTS-SRK115 | Buick | Saginaw 4 Speed | Syncro Ring Kit | $45.95 |
| DTS-SRK118 | Buick | T10 | T10S Syncro Ring Kit (Trans used w/ Nash OD) | $49.96 |
| DTS-SRK117 | Buick | Muncie M20 | Syncro Ring Kit | $44.18 |
| DTS-SRK115A | Buick | Saginaw 3Speed | Syncro Ring Kit | $32.98 |
| DTS-SRK116 | Buick | Muncie M21,M22 | Syncro Ring Kit | $49.69 |
| DTS-SRK235 | Chevrolet | HM290, NV3500 | Syncro Ring Kit w/ 1 piece 1-2 Syncro Getrag 290 (exc NV3500, NV3550) | $79.90 |
| DTS-SRK117 | Chevrolet | Muncie M20 | Syncro Ring Kit | $45.95 |
| DTS-SRK308 | Chevrolet | NV4500 | Syncro Ring Kit (no Reverse Syncro) | $201.91 |
| DTS-SRK308M | Chevrolet | NV4500 | Syncro Ring Kit (Complete) | $248.68 |
| DTS-SRK129 | Chevrolet | SM465 | Syncro Ring Kit (Aluminum & Iron Top Cover) | $40.86 |
| DTS-SRK235F | Chevrolet | NV3500, NV3550 | 97-on Getrag Syncro Ring Kit | $224.94 |
| DTS-SRK149 | Chevrolet | BW T5 W/C | Syncro Ring Kit 5 Speed World Class (Cast # 1352) | $403.98 |
| DTS-SRK235D | Chevrolet | Getrag 290 (incl NV3500, NV3550) | 95-on Getrag W/C Syncro Ring Kit | $195.95 |
| DTS-SRK116 | Chevrolet | Muncie M21,M22 | Syncro Ring Kit | $49.96 |
| DTS-SRK130 | Chevrolet | NP833, NP833O/D | SyncroRing Kit | $60.90 |
| DTS-SRK115A | Chevrolet | Saginaw 3 Speed | Syncro Ring Kit | $38.98 |
| DTS-SRK115 | Chevrolet | Saginaw 4 Speed | Syncro Ring Kit | $45.95 |
| DTS-SRK118 | Chevrolet | T10 | T10S Syncro Ring Kit (Trans used w/ Nash OD) | $49.90 |
| DTS-SRK396 | Chevrolet | T56 | 93-on Syncro Ring Kit (Exc Corvette) | $330.90 |
| DTS-SRK235C | Chevrolet, | Getrag HM290S NV3500, NV3550 | Syncro Ring Kit Syncronized Rev (30mm OD Cluster Journals) (1 pc 1-2 Syncro) | $108.98 |
| DTS-SRK130 | Chrysler | NP833, NP833O/D | SyncroRing Kit | $60.90 |
| DTS-SRK416 | Chrysler | NV1500 | Syncro Ring Kit | $138.88 |
| DTS-SRK396A | Corvette | T56 | 97-ON Corvette Ring Kit | $660.69 |
| DTS-SRK414 | Dodge | A578 | Syncro Ring Kit | $319.90 |
| DTS-SRK261 | Dodge | G360 | Syncro Ring Kit | $223.93 |
| DTS-SRK235C | Dodge | Getrag HM290S NV3500, NV3550 | Syncro Ring Kit Syncronized Rev (30mm OD Cluster Journals) (1 pc 1st-2nd Syncro) |
$108.88 |
| DTS-SRK235 | Dodge | HM290, NV3500 | Syncro Ring Kit w/ 1 piece 1-2 Syncro Getrag 290 (exc NV3500, NV3550) |
$79.90 |
| DTS-SRK233 | Dodge | NP535 | Syncro Ring Kit | $49.95 |
| DTS-SRK130 | Dodge | NP833, NP833O/D | SyncroRing Kit | $60.95 |
| DTS-SRK416 | Dodge | NV1500 | Syncro Ring Kit | $138.88 |
| DTS-SRK308A | Dodge | NV4500 | Dodge Syncro Ring Kit (uses a Reverse Syncro) | $223.93 |
| DTS-SRK308AM | Dodge | NV4500 | Dodge Syncro Ring Kit (Complete) | $457.87 |
| DTS-SRK492 | Dodge | NV5600 | 2001-on Syncro Ring Kit | $910.00 |
| DTS-SRK366E | Dodge | Stealth/300GT | 92-on SyncroKit | $220.93 |
| DTS-SRK235F | Dodge | NV3500, NV3550 | 97-on Getrag Syncro Ring Kit | $224.94 |
| DTS-SRK235D | Dodge | Getrag 290 (incl NV3500, NV3550) | 95-on Getrag W/C Syncro Ring Kit | $195.95 |
| DTS-SRK118 | Dodge | T10 | T10S Syncro Ring Kit (Trans used w/ Nash OD) | $49.98 |
| DTS-SRK130 | Dodge Truck | NP833, NP833O/D | SyncroRing Kit | $60.96 |
| DTS-SRK151A | Ford | FM132, FM146 | Syncro Ring Kit | $69.96 |
| DTS-SRK151 | Ford | FM145, KM132 | Syncro Ring Kit | $56.56 |
| DTS-SRK128 | Ford | HED | 65-67 3spd 4 Bolt Top Cover | $27.70 |
| DTS-SRK277 | Ford | M5TX | Syncro Ring Kit | $70.87 |
| DTS-SRK334 | Ford | MTX75 | Cougar/Contour Ring Kit | $264.84 |
| DTS-SRK112 | Ford | SROD, RTS, TOD | Syncro Ring Kit | $48.89 |
| DTS-SRK135 | Ford | T176, HEH, RUG | Syncro Ring Kit | $47.97 |
| DTS-SRK396 | Ford | T56 | 93-on Syncro Ring Kit | $330.90 |
| DTS-SRK144 | Ford | TK5 | Syncro Ring Kit | $53.88 |
| DTS-SRK144L | Ford | TK5 | TK5L Syncro Ring Kit | $59.92 |
| DTS-SRK111 | Ford | Tremec 3 Speed | Tremac Syncro Ring Kit 3 spd 9 bolt topcover, 63-86 | $34.84 |
| DTS-SRK149 | Ford | BW T5 W/C | Syncro Ring Kit 5 Speed World Class (Cast # 1352) | $403.98 |
| DTS-SRK107 | Ford | B/W T5 Non World Class | Syncro Ring Kit Cast "1352" | $97.58 |
| DTS-SRK118 | Ford | T10 | T10S Syncro Ring Kit (Trans used w/ Nash OD) | $49.98 |
| DTS-SRK146 | Ford | T19 | Syncro Ring Kit | $63.83 |
| DTS-SRK247 | Ford Mazda | M5R1 | -6/91 Early SyncroRing Kit 1 pc 2nd Syncro, 36 T 5th & Rev Syncro) | $102.73 |
| DTS-SRK247A | Ford Mazda | M5R1 | 6/91-on Late Syncro Kit (1 pc 2nd Syncro, 30 T 5th & Rev Syncro) | $109.69 |
| DTS-SRK248 | Ford Mazda | M5R2 | -6/91 Early Syncro Ring Kit (1 piece Syncros, 42 T 5th & Rev Syncro) | $71.91 |
| DTS-SRK248A | Ford Mazda | M5R2 | 6/91-on Late M5R2 Syncro Kit (1 piece Syncros, 33 T 5th & Rev Syncro) | $70.90 |
| DTS-SRK248C | Ford Mazda | M5R2 | 99-ON 5spd F150, F250 Ring Kit (3 piece 2nd Syncro) | $478.88 |
| DTS-SRK210A | Ford Mazda | M5TXA | Ford/Mazda Syncro Ring Kit (1 piece 2nd Syncro, no Syncro for Reverse) | $65.75 |
| DTS-SRK248B | Ford Mazda | RKE | 90-On Syncro Kit (Mazda Design) | $505.85 |
| DTS-SRK250 | Ford Mazda | T45 | 96-01 Syncro Ring Kit | $319.90 |
| DTS-SRK300ZF | Ford Truck | S542 | Syncro Ring Kit (w/ Aftermarket Steel Syncros) | $256.98 |
| DTS-SRK300ZFA | Ford Truck | S547 | Syncro Ring Kit | $253.93 |
| DTS-SRK486 | Ford Truck | S650 | Syncro Ring Kit (6.0L, 6.8L, 7.3L) | $403.93 |
| DTS-SRK486M | Ford Truck | S650 | Master Ring Kit | $479.59 |
| DTS-SRK114 | Ford, | T18 | Syncro Ring Kit | $57.97 |
| DTS-SRK114J | Ford, | T98/T18 | Syncro Ring Kit | $59.99 |
| DTS-SRK264 | GEO | MV3 | Geo Metro Syncro Ring Kit | $113.83 |
| DTS-SRK107 | GM | B/W T5 | Syncro Ring Kit Cast "1352" | $97.98 |
| DTS-SRK130 | GMC | NP833, NP833O/D | SyncroRing Kit | $60.96 |
| DTS-SRK115 | GMC | Saginaw 4 Speed | Syncro Ring Kit | $45.95 |
| DTS-SRK129 | GMC | SM465 | Syncro Ring Kit (Aluminum & Iron Top Cover) | $40.90 |
| DTS-SRK235F | GMC | NV3500, NV3550 | 97-on Getrag Syncro Ring Kit | $224.94 |
| DTS-SRK149 | GMC | BW T5 W/C | Syncro Ring Kit 5 Speed World Class (Cast # 1352) | $403.98 |
| DTS-SRK235D | GMC | Getrag 290 (incl NV3500, NV3550) | 95-on Getrag Syncro Ring Kit | $195.98 |
| DTS-SRK235 | GMC | HM290, NV3500 | Syncro Ring Kit w/ 1 piece 1-2 Syncro Getrag 290 (exc NV3500, NV3550) |
$79.98 |
| DTS-SRK117 | GMC | Muncie M20 | Syncro Ring Kit | $44.98 |
| DTS-SRK116 | GMC | Muncie M21,M22 | Syncro Ring Kit | $49.90 |
| DTS-SRK115A | GMC | Saginaw 3Speed | Syncro Ring Kit | $31.98 |
| DTS-SRK118 | GMC | T10 | T10S Syncro Ring Kit (Trans used w/ Nash OD) | $49.90 |
| DTS-SRK235C | GMC | NV3500, NV3550 | $109.90 | |
| DTS-SRK329 | Honda | D2 | Prelude Syncro Ring Kit | $126.86 |
| DTS-SRK326 | Honda | L3 | Honda Syncro Ring Kit | $92.96 |
| DTS-SRK387A | Honda | M2 | Honda Syncro Ring Kit | $190.90 |
| DTS-SRK387B | Honda | M2 | Honda Syncro Ring Kit | $191.99 |
| DTS-SRK146 | International | T19 | Syncro Ring Kit | $63.96 |
| DTS-SRK114J | International | T98/T18 | Syncro Ring Kit | $57.97 |
| DTS-SRK114 | International, | T18 | Syncro Ring Kit | $56.96 |
| DTS-SRK194B | Isuzu | MR8 | 5spd FWD Isuzu Ring Kit FWD 5 SPD, 1995-UP | $175.95 |
| DTS-SRK220 | Isuzu | MSG-5F | Syncro Ring Kit (1 piece 1-2 Syncros) (5th & Reverse Syncros have different inside taper) |
$106.96 |
| DTS-SRK220D | Isuzu | MSG-5F | Syncro Ring Kit | $272.92 |
| DTS-SRK163 | Jeep | AX15, R151 | -4/94 R151,Syncro Kit (1 pc 2nd Syncro) | $73.93 |
| DTS-SRK149 | Jeep | BW T5 W/C | Syncro Ring Kit 5 Speed World Class (Cast # 1352) | $403.98 |
| DTS-SRK114 | Jeep | T18 | Syncro Ring Kit | $56.96 |
| DTS-SRK114J | Jeep | T98/T18 | Syncro Ring Kit | $57.97 |
| DTS-SRK421 | Kia | Kia Sportage Syncro Ring Kit | $479.89 | |
| DTS-SRK137L | Mazda | B2200 | Syncro Ring Kit | $69.96 |
| DTS-SRK302A | Mazda | Miata | 95-on 5spd Syncro Ring Kit | $268.98 |
| DTS-SRK137C | Mazda | RX7 5spd | 89-ON SyncroRev. | $121.81 |
| DTS-SRK199 | Mazda | 929 | 88-ON 5spd 4X4, RWD | $331.91 |
| DTS-SRK232C | Mitsubishi | F5M21 | Ring Kit | $92.92 |
| DTS-SRK232A | Mitsubishi | F5M21, KM201 | Syncro Ring Kit | $69.59 |
| DTS-SRK358 | Mitsubishi | F5M22 | Syncro Ring Kit | $71.91 |
| DTS-SRK358A | Mitsubishi | F5M22 | SyncroRing Kit, w/Reverse | $136.96 |
| DTS-SRK361 | Mitsubishi | F5M33, W5M33 | Syncro Ring Kit (1 piece 2nd Syncro) | $93.98 |
| DTS-SRK428 | Mitsubishi | W5MG1 | Syncro Ring Kit (5 Speed) (12 Bolt Aluminum Cover) | $1,122.22 |
| DTS-SRK428A | Mitsubishi | W5MG1 | W6MG1 Syncro Ring Kit | $1260.90 |
| DTS-SRK416 | Mitsubishi | NV1500 | Syncro Ring Kit | $138.88 |
| DTS-SRK133E | Nissan | FS5W71C, FS5W71H | (1 piece 2nd Syncro, uses Syncro for Reverse) | $153.93 |
| DTS-SRK133E | Nissan | (61mm OD Front Cluster Bearing) | 98-on Frontier Syncro Kit (1 piece 2nd Syncro, uses Syncro for Revers e) | $153.93 |
| DTS-SRK133 | Nissan | FS4W71E, FS5W71C, FS5W71H | $59.89 | |
| DTS-SRK240C | Nissan | FS5R30A | 1/91-98 Syncro Kit (3 piece 2nd Syncro, 2.79" ID 4th Syncro) | $214.94 |
| DTS-SRK240D | Nissan | FS5R30A | 98-On FS5R30A Syncro Kit (3 piece 2nd Syncro, 2.95" ID 4th Syncro) | $302.92 |
| DTS-SRK240L | Nissan | FS5R30A | 3/87-1/92 Syncro Kit (54 T 1 piece 2nd Syncro) | $131.91 |
| DTS-SRK240 | Nissan | FS5R30A | 6/86-3/87Syncro Kit (42 T 1 piece 2nd Syncro) 4wd Hardbody & Pathfinder (6 cyl 5 Speed) |
$294.84 |
| DTS-SRK133F | Nissan | FS5W71C, E and H | Nissan Syncro Ring Kit (3 piece 2nd Syncro, uses Syncro for Revers e) | $194.94 |
| DTS-SRK212 | Nissan | FS5W71G | 86-1/92 Syncr Ring Kit | $63.82 |
| DTS-SRK133B | Nissan | FS5W71H,FS5W71C | $147.74 | |
| DTS-SRK212B | Nissan | Hardbody Truck | Nissan Syncro Ring Kit Hardbody Truck (4wd) (2.4L) (1 pc 2nd Syncro) | $84.84 |
| DTS-SRK182D | Nissan | RS5F50A | Maxima Syncro Ring Kit | $286.96 |
| DTS-SRK116 | Oldsmobile | Muncie M21,M22 | Syncro Ring Kit | $49.96 |
| DTS-SRK115A | Oldsmobile | Saginaw 3 Speed | Syncro Ring Kit | $31.98 |
| DTS-SRK115 | Oldsmobile | Saginaw 4 Speed | Syncro Ring Kit | $45.95 |
| DTS-SRK118 | Oldsmobile | T10 | T10S Syncro Ring Kit (Trans used w/ Nash OD) | $49.90 |
| DTS-SRK117 | Oldsmobile | Muncie M20 | Syncro Ring Kit | $44.94 |
| DTS-SRK130 | Plymouth | NP833, NP833O/D | SyncroRing Kit |
$60.96
|
| DTS-SRK416 | Plymouth | NV1500 | Syncro Ring Kit |
$138.98
|
| DTS-SRK118 | Plymouth | T10 | T10S Syncro Ring Kit (Trans used w/ Nash OD) | $49.98 |
| DTS-SRK117 | Pontiac | Muncie M20 | Syncro Ring Kit | $44.98 |
| DTS-SRK116 | Pontiac | Muncie M21,M22 | Syncro Ring Kit | $49.96 |
| DTS-SRK115A | Pontiac | Saginaw 3 Speed | Syncro Ring Kit | $31.98 |
| DTS-SRK115 | Pontiac | Saginaw 4 Speed | Syncro Ring Kit | $45.95 |
| DTS-SRK118 | Pontiac | T10 | T10S Syncro Ring Kit (Trans used w/ Nash OD) | $49.90 |
| DTS-SRK395 | Saturn | Saturn Syncro Ring Kit | $152.92 | |
| DTS-SRK293A | Suzuki | 89-91 5spd Suzuki Side Kick 2wd | $76.96 | |
| DTS-SRK165 | Suzuki Samurai | Samurai Syncro Ring Kit | $65.95 | |
| DTS-SRK191 | Toyota | C50 | Toyota Corolla SyncroRing Kit (Syncro Assemblies use Wire Type Springs) | $173.93 |
| DTS-SRK191A | Toyota | C50 | RING KIT, 92-ON Transaxle coil type 1-2/3-4 Syncros | $259.95 |
| DTS-SRK157 | Toyota | L52, G52, AX5 | Syncro Ring Kit | $50.95 |
| DTS-SRK162 | Toyota | W56 | 84-10/91 Syncro Ring Kit (6307N Input Brg) | $57.87 |
| DTS-SRK162B | Toyota | W56 | 10/91-on Syncro Ring Kit | $151.81 |
| DTS-SRK162C | Toyota | W59 | 93-On Toyota Syncro Kit | $310.81 |
| DTS-SRK163C | Toyota | 8/94-12/95 Syncro Ring Kit (59mm OD Rear Main Shaft Bearing) | $310.81 | |
| DTS-SRK163D | Toyota | Syncro Ring Kit | $264.46 | |
| DTS-SRK418A | Toyota | Ring Kit, 2000-01 5spd Celica | $436.00 | |
| DTS-SRK163 | Toyota | AX15, R151 | -4/94, Syncro Kit (1 pc 2nd Syncro) | $73.93 |
| DTS-SRK412 | VW | VW020 | 83-on VW Syncro Ring Kit | $77.97 |