Tractor endless tread

In a tractor endless tread, including an endless string of grouser-mounting base plates, two endless wire rope loops overlying the grouser-mounting base plates, clamping strips overlying the grouser-mounting base plates, respectively, and engageable with the endless loops, and means for securing each clamping strip to its grouser-mounting base plate for anchoring the endless loops to the grouser-mounting base plates, the improvement comprising shear-transmitting means engageable between adjacent clamping strips for transmitting shear load from one of such clamping strips to the other such clamping strip, the shear-transmitting means including a projection on the edge of one clamping strip and a socket on the adjacent edge of the adjacent clamping strip engageable by said projection, one adjacent edge of a first adjacent clamping strip having a projection and having sockets on opposite sides of said projection and the adjacent edge of a second adjacent clamping strip having a socket and having projections on opposite sides of said socket, said projection of said first clamping strip interfitting with said socket of said second clamping strip and each projection of said second clamping strip interfitting with a socket on the adjacent edge of said first clamping strip.