Cross-reference
Track lug height to stud length
Stud length is decided by track lug height. Both manufacturers publish a chart; both are printed here exactly as published. They do not agree on the numbers because they do not measure the same thing — Woody's series is the length from the top of the backing plate to the tip, Stud Boy quote a stud size and a separate overall length. Use one manufacturer's chart with that manufacturer's studs.
Woody's
| Lug height | Penetration range | Overall stud length | Series |
|---|---|---|---|
| 0.525" | .345-.375" | 1.160" | 7500 |
| 0.750" | .345-.375" | 1.265" | 8755 |
| 0.820" | .320-.350" | 1.340" | 9205 |
| 0.850" | .310-.340" | 1.340" | 9205 |
| 0.880" | .270-.300" | 1.340" | 9205 |
| 0.910" | .320-.350" | 1.420" | 1005 |
| 0.920" | .310-.340" | 1.420" | 1005 |
| 1.000" | .300-.330" | 1.495" | 1075 |
| 1.100" | .320-.350" | 1.600" | 1175 |
| 1.250" | .320-.350" | 1.740" | 1325 |
| 1.352" | .345-.375" | 1.740" | 1325 |
| 1.375" | .345-.375" | 1.875" | 1450 |
| 1.500" | .345-.375" | 1.980" | 1575 |
| 1.600" | .345-.375" | 1.980" | 1575 |
Source Woody's Traction Tips and Penetration Chart G1-06-0001-6 rev 052516. Woody's recommend .250"–.375" penetration, 3/8" maximum.
Stud Boy
| Lug height | Suggested stud size | Penetration above lug | Stud O.A.L. |
|---|---|---|---|
| 0.725" | 0.875" | .405-.435" | 1.318" |
| 0.750" | 0.875" | .380-.410" | 1.318" |
| 0.820" | 0.875" | .310-.340" | 1.318" |
| 0.850" | 1.000" | .405-.430" | 1.448" |
| 0.880" | 1.080" | .455-.485" | 1.523" |
| 0.910" | 1.000" | .345-.375" | 1.448" |
| 0.920" | 1.000" | .335-.365" | 1.448" |
| 1.000" | 1.187" | .442-.472" | 1.630" |
| 1.100" | 1.187" | .342-.372" | 1.630" |
| 1.250" | 1.375" | .375-.405" | 1.755" |
| 1.375" | 1.500" | .375-.405" | 1.885" |
| 1.500" | 1.625" | .375-.405" | 1.980" |
| 1.625" | 1.750" | .375-.405" | 2.115" |
Source Stud Boy Track Lug Height to Stud Length Application Chart. Lug heights vary ±.030".
Camso Cobra tracks carry traction teeth that stand about 0.100" above the lug. Woody's publish the 1.352" Cobra as a 1325 series and the 1.600" Cobra as a 1575 series, measured from the most prominent lug height.