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Automatic Transmission, Circlematic, Forward Shift Pattern, Full Manual Valve Body, Stock Pan, Chevy, THM350, Each
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Estimated Ship Date: Oct 19, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
312002
Part Type:
Product Line:
Summit Racing Part Number:
TCI-312002
UPC:
788120030489
Number of Gears:
3
Bellhousing Bolt Pattern Manufacturer:
Chevy
Transmission Shift Pattern:
Forward
Valve Body Style:
Full manual
Torque Converter Included:
No
Flexplate Included:
No
Transmission Controller Included:
No
Wiring Harness Included:
No
Transmission Cooler Included:
No
Trans-Brake Included:
No
Lockup Compatible:
No
Transmission Pan Style:
Stock
Transmission Pan Material:
Aluminum
Transmission Pan Finish:
Natural
Tailshaft Length (in.):
6.000 in.
Yoke Style:
Slip-on
Input Spline Quantity:
30
Input Shaft Style:
TH350/400
First Gear Ratio (Automatic Transmissions):
2.52
Transmission Case Style:
OEM
Transmission Case Material:
Aluminum
Transmission Case Finish:
Black
Transmission Shield Built In:
No
Flexplate Shield Built In:
No
Fluid Fill Location:
Case
Transmission Fluid Included:
No
Dipstick Included:
No
Remanufactured:
Yes
Quantity:
Sold individually.
TCI Circlematic Transmissions
TCI Circlematic automatic transmissions are great for oval track use. However, despite the sound of their name, they also can be used for performance marine applications. All transmissions feature high performance clutches, a steel clutch hub, and a modified planetary gear set that will work with the latest rear suspensions. Many specialty combinations are available.
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Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
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