SKU: AS-242116840

1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500

$18.95

Arm Thread: 1/2-13

1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500

SKU
Arm Thread
Price
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
AS-242116840 1/2-13
$18.95
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
AS-242116838 12mm x 1.25
$18.95
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
AS-242116835 10mm x 1.5
$18.95
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
AS-242116844 5/16-18
$18.95
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
AS-242116834 8mm x 1.25
$18.95
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
AS-242116843 3/8-24
$18.95
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
AS-242116836 10mm x 1.25
$18.95
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
AS-242116842 3/8-16
$18.95
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
AS-242116846 7/16-14
$18.95
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
AS-242116841 1/2-20
$18.95
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
AS-242116837 12mm x 1.5
$18.95
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
AS-242116845 5/16-24
$18.95
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
AS-242116839 12mm x 1.75
$18.95
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1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
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1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500

1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500

Arm Thread: 1/2-13

$18.95

Product information

Achieve Precise Shifting and a Factory Fit With All of Our CNC Machined Billet Shift Knob Adapters for your 1988-1998 GMC Sierra OBS .

These adapters come with common industry standard M16 x 1.5 threads which fit most of our 1000s of shift knobs. Other adapters based on (M16 x 1.5) are available in both SAE and Metric formats so you can fit any knob to any car.

FEATURES
- Billet Aluminum
- 16mm x 1.5 (Common Thread)
- Jam Nut Included
- Detailed Instructions
- Limited Lifetime Warranty

If you are unsure about what fits your vehicle please check out our fitment chart.

All American Shifter products come with Detailed Instructions and a Limited Lifetime Warranty.

Choose American Shifter Company and Shift With The Best!

We recommend verifying your shifter's thread size as some vehicles may differ.

***Please Note***

This is NOT an OEM part. Professional installation recommended, some modifications may be required to work with your vehicle.

Get Instructions
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500
1988-1998 GMC Sierra OBS Custom Shift Knob Threaded Adapter Factory Fit Precise Shifting , SLE, SLX, SL, SLT, GT, Special, SLS, Sport, C1500, C2500, C3500, K1500, K2500, K3500

Time Tested Tough

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