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JEGS 60305

JEGS TH350 Performance Transmission for Buick, Oldsmobile, or Pontiac with Short 6 in. Tailshaft


made in usa
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Truck Freight: $119.00
JEGS TH350 Performance Transmission for Buick, Oldsmobile, or Pontiac with Short 6 in. Tailshaft $999.99
Out of stock
TH350 Performance Transmission
  • Buick, Oldsmobile, Pontiac with Short 6 in. Tailshaft
  • Case Fill
  • Dyno Tested
  • JEGS 60305 Details

    GM TH350

    • Overall Length: 27 5/8 in.
    • Designed to work without throttle valve or kickdown cable
    • Removal of the kickdown block-off plug voids warranty
    • Can be used with adapter 555-60170 to work with Chevy bolt pattern
    • Speedometer drive gear and driven gear not included


    • Handles Up To 450 HP
    • Firm, Crisp Shifts
    • Made in the USA

    NOTE: If you have any problem installing this transmission, before returning it please call the JEGS technical support line at 1-800-345-4545. Our experts may be able to assist you with the proper installation.


    Sold individually
    Trans-Brake Included
    Valve Body Style
    Dipstick Included
    Case Material
    Fluid Fill Location
    Input Spline Quantity
    Safety Rating
    Not SFI Approved
    Pan Type
    Yoke Style
    Slip On
    First Gear Ratio (Automatic Transmissions)
    Tailshaft Length (in.)
    Trans Model
    Bellhousing Bolt Pattern
    Shift Pattern
    Shipping Weight:
    Package Height:
    Package Depth:
    Package Width:

    Performance Transmissions that Won't Bust the Budget

    These transmissions are remanufactured with a performance shift kit and all new bands, clutch plates, steel plates, seals, gaskets, etc. to consistently handle up to 450 horsepower with minimal effort. A rebuilt front pump and recalibrated valve body ensure smooth-running transmissions with lasting reliability. The chrome pan with drain plug (except where noted) makes them look as good as they go!

    Fluid Capacities

    Transmission Dimensions

    JEGS EZ Kits are designed by JEGS professionals to ensure that you get all the correct parts you need.

    60305 is rated 5.0 out of 5 by 1.
    Rated 5 out of 5 by from Very pleased put behind a 403 olds. Pulls hard shifting grate. Best transmission for the $
    Date published: 2016-03-04
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    What is the max torque this transmission can handle?

    Asked by: bmolsy22
    This transmission will hold up to 450 ft lbs of torque.
    Answered by: Rusty B
    Date published: 2018-06-12

    Can I use on a 455 bored .030 over 1972 Pontiac engine ?

    Asked by: Pontiac torque
    Yes, this will fit your application as long as the HP is within the range of the TH350.
    Answered by: Rusty B
    Date published: 2018-06-07

    Will this fit a 454 tbi chevy engine because the truck I have is a 1994 chevy 1500 4x4 with a 7.4 454 not the original 5.7 350

    Asked by: Israel c
    No, this is a trans for a Buick, Olds, or Pontiac application. You need to look at this transmission - http://www.jegs.com/i/JEGS-Performance-Products/555/60310/10002/-1
    Answered by: Rusty B
    Date published: 2018-04-10

    Do you all refund a portion of the cost like the parts places do when I turn my old transmission in. I don’t need it.

    Asked by: JonnyQuess
    We do not take transmission cores. You might try contacting a local transmission shop and see if they will purchase your core from you.
    Answered by: Matt_B
    Date published: 2018-03-31

    why cant a person hook up the kick down cable to this transmission? Why would it void warranty?

    Asked by: ramrodude
    The valve body has been modified and is not designed to work with a kickdown cable.
    Answered by: Jon Jegs Tech
    Date published: 2018-03-18

    What size bolt does the transmission mount use on this?. The 2 holes on the bottom where the mount mounts.

    Asked by: 68camarors
    The trans mount bolt is 7/16"-14.
    Answered by: Dean R
    Date published: 2018-01-18

    what is minimum amount of vacuum needed for transmission to run right I have 8 inches in park and 6 inches in drive

    Asked by: Bigg Redge
    8'' of vacuum @ 2000 rpm
    Answered by: SteveM
    Date published: 2017-12-06

    Will this fit a 1965 GTO 326 that has a turbo 300

    Asked by: TomDon
    This will fit, but you may need to change the torque converter and the driveshaft.
    Answered by: Rusty B
    Date published: 2017-11-13
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