How to Measure a Slip Yoke
Measure OE slip yoke with a precision tool to determine which Sonnax yoke you need. Centerline to end length, journal size and U-joint series are critical dimensions requiring accurate measurements.
Some slip yokes have missing splines include the missing spline in your count or count the splines on the transmission output shaft.
Also check if the OE yoke has a counterbore and whether the transmission tail housing uses a bushing or roller bearing.
A Spline Count
B Journal Dia.
C Centerline to End Length
D Barrel Length
E U-Joint Width*
F U-Joint Cap Diameter*
*U-joint bores in yoke will be slightly larger than the actual U-joint dimensions given in the chart below.
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ASpline Count
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CCenterline to End Length CounterboreBBarrel LengthDJournalDiameter
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FEU-Joint SeriesE = U-Joint WidthF = U-Joint Cap Diameter
How to Determine a U-Joint Series
U-Joint Series
E
U-Joint Width (inches)
F
U-Joint Cap Diameter (inches)
3R
2.562
1.125
1310
3.219
1.062
1330
3.622
1.062
1350
3.622
1.188
1410
4.188
1.188
1480
4.188
1.375
1485
4.178
1.375
1550/1555
4.964
1.375 outside snap rings
Measure the inside snap ring, indicated on the diagram as G.
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FGE
Need help choosing a slip yoke? Watch this video.