The Precision Gear two-pinion GM Trac-Lok, clutch style L/S unit improves traction significantly over conventional open differentials. It is suitable for both front and rear applications at an economical price.
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Review Application Rating
PG TECH: What's the Diff?
GM Trac-Lok Part Numbers
Part Number
Application
Ratio
Spline
GM10/LSLBP
GM 8.2" BP
2.41-2.79
28
GM10/LSLPG
GM CHEVY CAR '55-'64
3.08-3.73
17
GM10/LSMBP
GM 8.2" BP
2.87-3.31
28
GM10/LSHBP
GM 8.2" BP
3.36+
28
GM10/LSHF
GM 8.5"
2.73+
28
GM10/LS"O"2
GM 8.5" "O"
2.56-2.79
28
GM10/LS"O"3
GM 8.5" "O"
2.93-3.23
28
GM10/LS"O"4
GM 8.5" "O"
3.42+
28