THM250 Transmission parts, repair guidelines, problems, manuals
Transmission general data
| Number of gears | Transmission Type | Drive | ATF (full capacity) L | ATF (change) L | ATF type |
|---|---|---|---|---|---|
| 3 | AT | RWD | 9,5 | 5,6 | Dexron II |
The automatic gearbox THM250 is based on the
THM350. This gearbox was released in 1974 and was applied in Chevrolet cars.
The THM250 was developed and designed by GM as a part of Turbo Hydra-Matic family
of automatic gearboxes. When taking into consideration the internal structure
of the gearbox, the THM250 is very similar to THM350, apart from the
intermediate clutch package with a band adjuster.
What are you looking for?
Overhaul Kit | Friction Kit | Friction | Steel Plate | Steel Kit | Band | Solenoid Kit | Solenoid EPC | Solenoid TCC | Pump | Shaft | Drum | Valve body | Torque converter | Hub | Piston | Piston Kit | Planetary Gear | Filter | Gasket | Bushing | Seal | Bearing | Pressure Plate | Stator | Differential | Retainer | Inhibitor Switch | Instruction manual | TOOLS & ACCESORIES | Sensor
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- Accumulators, Accumulator Piston, Acummalator Kit, Accumulator Piston Kit
- Actuators
- Bands, Brake band, Lining
- Bearings, brg, Mainbearing
- Cover Bolt, Cover Bolts, Mounting Bolt, Mounting Bolts, Pan Bolt, Pan Bolts, stud, studs, Split Pin
- Booster, Boosters, Boost Regulator, Boost Spring, Boost Valve, Lockup Boost, Booster kit, Kit Boost, Kit Boost Valve
- Brackets, Connector Bracket, Connector Brackets, Cable Bracket
- Vents, Case Vent, Case Vent Valve, Vent Hose Connector, Vent, Plastic Breather
- Bushings, Bush,
- Casing, casings, cases
- Case Covers, Cover, Dust Cover,
- Check Balls, Checkball, Checkballs, Balls, ball
- Circlips, Clip, Detent Cable Clip, Line Clip, Linkage Clip, Retainer Clip, Snap Ring, Snap Rings, Retaining Ring, Cover Retaining Ring, Retaining Ring, Circlip Kit, Kit Circlips, Kit Snap Ring, Kit Snap Ring,
- Connectors, loom
- Detent Cables, Kick Down Cable, Cable Kick Down,
- Differentials, Differential Carrier, Differential Carriers, Diff, Diff., Diff Housing Carrier
- Dipsticks, dip-stick, dip-sticks, Dip Stick
- Flexplates, Flex plate, Driveplate, Drive plate, D/Plate, Flexplate
- Drums, Contender Drum, Drum with Bearing, Reverse Drum, Drum Part
- TCMs, transmission control module, TCU, TCM, Computer, Circuit Board, Control Module, Control Unit, Hardware
- Electrics, Electric, Electronic, Electronic Shift, Electronics, Pin Wiring, Relay Control Switch, Neutral Relay, Main Relay
- Extn Hsg, Extn.Hsg, Extensions, Extension, Overdrive Housing, TAIL HOUSING, TAIL EXTENSION
- Filters, Filter Cartridges, Filter Cartridge, Oil Pan Filter, Inlet, Filter Kit
- Flanges, Drum Flanges, Drum Flange, Flange Yokes, Flange Yoke, Flange Kit, Rear Flange Kit, Yoke, Slip Yoke, Yokes, Flange
- Flywheel Shim, Dual Mass Fly Wheel, Fly Wheel, Dual Mass Flywheel
- Friction Discs, Frictions, fric, Friction Disc, Friction, Friction Plate, Friction Ring, fric., Clutch Plate, Friction Lining
- Friction kits, friction pack, friction set, High Energy Clutch Friction Module, Friction clutch
- Gaskets, gsk, gskt, , Cover Gasket, Cover Gaskets, Case Gasket, Case Gaskets, Filter Gasket,Filter Gaskets
- Gasket Pan, Pan Gaskets, Pan gasket, Filter Gasket,Filter Gaskets
- Governors
- loom, Harnesses, Line Connector, Wiring, Cover Wiring, Cable, Signal Cable, Cable, Power Cord
- Housings
- Extension Housing Seal, Ext Housing Seal
- Hubs, Hub Insert
- Impellers
- Impeller Hubs
- Input Shafts, Shaft input, Shaft Input/Main, Inputshaft
- manuals, Technical manual, Repair manual, service manual, Manual, VIDEO & AUDIO, tapes
- Lever, Levers, Lever Control Rod, Knob, Lever Pin, Lever Collar, SHIFT LINKAGE, Linkage Rod, Linkage, Park Pawl, Rod
- Lubes, Tranny's Green Assemblee,
- Modulators, Reverse Modulator, Vacuum modulator
- Mounting Pad, Mounting Ring, Transmission Mount, Transmission Mounts, Mounting Rings, Mounting Pads
- o-ring, o ring, 0ring, 0-ring, 0 ring, ORing, Ring, O-Rings, o-ring, O'Ring
- Output Shafts, Carrier Output Shaft, SHAFT OUTPUT
- ohk, OHK kit, Overhauls, mok, Overhaul kit, Masterkit, Master kit, Master Overhaul, Repair package, Overhaul, Rebuild kit, Master Rebuild, Super Rebuild Bundle, Banner Kit, SUPER KIT, SUPERIOR KIT
- Pans, Crankcase, Oil Pan
- Pinions, Pinion Gear, Pinion Pin, Pinion Gear Shaft,
- Pistons, Apply Piston, Pack Piston, High Piston, Damper Piston, Piston Damper, Piston Plate, Interm. Servo Pist, Piston Seals, Piston Seal Ring, Piston Seal Rings, Piston Seal, Piston Cover, Piston Covers, Rear Servo, servo piston, Piston Retainer, Piston Retainers, Servo kit, Super Servo, servo, Shift Pison
- Planetary Gears, Planetary Gear Set, Planetary Gear Sets, Planet, Planetary Assembly, Planetary Component, Reaction Carrier, Planet
- Pressure Plates, Apply Plate, Backing Plate, Backing Plates, Backplate, Ret Plate, Dish Plate, Press Plate
- Pressure Sensors, Sensor Gov Pressure
- Pressure Switches
- Pumps, Rotor, Vane, Vanes, Kit Pump Vane/Ring
- Repair Kit, Kit Case Repair,
- Retainers, Spring Retainer, Plug Retainer, Bearing Retainer
- Seals, Metal clad seal, Lip Seals, Connector Hole Seal, Lip Seal, Main Seal, Radial Lip Seal, Main Seal, Manual Seal, Oil Feed Seal, Side Cover Seal, Seal Cooler, Seal Oil Cooler, Case Seal
- Pump seal
- Cap,
- Seal Rings, Seal Ring, Sealing Rings, Piston Seal, S/Ring, SEALING RINGS S/Ring, Accumalator Seals
- Seperator Plate, V/B Separater Plate, Seperater Plate, sep plate, Spacer, Spacers
- Shells
- Reprogramming Kit, Kit Reprogram, Reprogram Competition, Kit Shift, Kit Auto Shift, Kit Stick Shift, Shift Correction Kit
- Shims, Endplay Shims, End-play Shims, End-play Shim, Endplay Shim
- Sleeves, SLEEE, Ground Sleeve, Overlap Control Sleeve, Seal Ring Sleeve, Repair Sleeve, Regulator Sleeve, Modulator Sleeve, Pressure Sleeve, Piston Sleeve, Pinion Repair Sleeve, Damper Sleeve, Bore Sleeve, Boost Sleeve
- solenoid, Shift Solenoid, Kickdown Solenoid, Control Solenoid Support, Solenoid Retainer, Interlock Solenoid, Solenoid Switch
- Solenoid Blocks, sol block, Brass Contact,
- Solenoid package, solenoids, Solenoid Retainer, Solenoid Kit, pack, Solenoid Upgrade Kit, Solenoid Set, Shift Solenoid Upgrade Kit, Shift Solenoid Kit Set
- Speed Sensors, Output Sensor, Input sensor, Reluctor, Shaft Sensor, Speed Sender, Sensor Input, Sensor Output, Sensor Input / Output, TURBINE SPEED, INPUT SPEED, VEHICLE SPEED
- Speedometer Driven Gear, Speedo
- spragg, Sprags, Mechanical Diode, Sprag Assembly, Sprag Cartridge, One Way Clutches, One Way Clutch, Roller Clutches, Roller Clutch, Low/Rev Diode, Retaining Plates, Retaining Plate, Accordion Spring, OWC
- Springs, Wave Spring, Spring Adjuster, Spring Disc, Torsion Spring, Return Spring, Piston Spring, Damper Spring, Damper Springs, Control Spring, Detent Spring, Drum Spring, Limit Spring, Return Sprng, Diaphragm Springs, Diaphragm Spring
- Steel Kits, Steel Set Kit, Steel Clutch Plate Kit, Steel kit, clutch steel, clutch steels, Steel set, steel pack, module kit, Steel Plate Clutch Kit, Steel Plate Kit, Steel Plate Module, Steel Plate Set, Steel Module
- Steel Plates, steel, Steels, steel disk
- Sun Gears, Sungear, Sungears, Sun Gear Retaining Ring, Final Drives, Final Drive, FinalDrive, SUN
- Supports, Centre Supp Rebuilt, central support. support central
- Manifolds, Switch Manifold, Switch Manifolds, Pressure Switch Manifold, Pressure Switch Manifolds, Switch, Manifold
- Washer, Washers, T/Washers, Thrust Washers, Selective Washers, Kit Washer, Drive Sprockets, Driven Sprockets, Drive Sprocket, Thrust Kit, Washer kit,
- Tool kits, Alignments, Alignment, Reamers, Reamer, Tool kit, Tool, Pressure Gauge, Clutch Aligning Tool, Clutch Removal Tool, Clutch Tool Supplement, Kit Installer, Air Test Plate, ADJUSTMENT TOOL, Thread Tap, Remover
- converter, t.converter,
- Tubes, Oil Tube
- Turbines
- Throttle Valve, Timing Valve, Operating, Relief Valve, Safety Valve, Control Valve, AFL Valve, Limit Valve, Actuator Feed Limit Valve, AFL Valve
- VB plate, Valve body plates, Valve body plate, ValveBody, V/Body, valve-body, v body, v-body, v/b, Orifice, Hydraulic control unit, HCU
- Overlap Control Valve Kit, Pressure Regulator Valve, Switch Valve Plug, Actuator Feed Limit
Generally, the THM250 was attached to small displacement engines. In 1976 this gearbox was taken out of production and was replaced by the light-duty THM200 transmission. However, the THM250 reemerged in 1979 as the THM250-C as a result of numerous issues withTHM200/200C. The 250C version had a reduced weight thanks to the use of a central gear shell applied the THM350, but with three holes to decrease flywheel mass and the low/reverse piston with eight notches.
Instruction manuals and useful links Suggest your link
| Link type | Source | Description |
|---|---|---|
| oldcarmanualproject.com | Repair manual THM250 | |
| drive.google.com | THM 350C Repair manual |