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GM Turbo 350 Stock Capacity
Transmission Pan

P/N 9589

PML TH 350 Stock tranny pan, as-cast
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PML TH 350 Stock tranny pan, powder coated
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PML TH 350 Stock tranny pan, polished
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As-cast finish
$190.00
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Black powder coating
$245.00
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Polished finish
$320.00
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Volume: stock capacity

Dimensions: Click here for dimensions. Although this pan is stock capacity, it is still larger than the stock pan. Always check your vehicle for clearance before ordering.

Number of Bolts: 13

This PML pan fits cars and trucks with the GM TH350 (Turbo-Hydramatic 350) transmission. The transmission was first available in 1969 after joint development by Buick and Chevrolet. The TH350 transmission is found in GM (Chevy, Cadillac, Olds, Buick) vehicles as well as retrofitted Jeeps and other cars and trucks. For example, this transmission was originally on 1967 to 1972 El Caminos, Blazers, and C/K 20 trucks and Suburbans.

The TH350 transmission is called Turbo 350 in the racing field and is formally called THM350 for Turbo-Hydra-matic 350. It first appeared in cars in 1969 and continued in production in the 1980s.

Make sure to check for clearance with the drive shaft and bosses on the passenger's side.

The pan has a boss near the drain that can be machined for a temperature sensor unit (machining is optional).

PML also offers a deep version of this pan with extra fluid capacity. The deep pan, PML part number 9684, does not have the external bosses that may interfere with the drive shaft on some vehicles.

PML Transmission Pan Compared to Stock

PML Transmission Pan Part Numbers 9589_9684 height compared to stock  PML Transmission Pan Part Numbers 9589, compared to stock
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These images show this PML transmission pan compared to the stock pan.

PML Transmission Pan Features:

  • Sand-cast aluminum with raised fins
  • 3/16-inch thick wall construction to add strength to the transmission case
  • 3/8-inch thick gasket flange will not bend when bolts are tightened
  • Machined gasket surface for a secure seal
  • Boss cast into pan can be machined for a temperature sensor
  • Drain hole and magnetic drain plug for easier, less messy maintenance

All PML transmission pans ship with new mounting bolts and a magnetic drain plug.

If you would like PML to machine your pan for a temperature sending unit, there is an additional charge of $40.

Find out why you should buy a PML transmission pan.

Learn more about finishes and construction of PML parts.

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