U joints are hard to buy by application. I always buy them by dimension. You probably have a 1350 series or a 1410 series. Both have 1.187 caps on all 4 corners. The 1350 1s 3.625 from end to end and the 1410 is 4.188 end to end. Both are common and should cost between $25 and $30 in genuine Spicer.