Jsmith, that sounds right. My son didnt get u bolts tight when we put rebuilt trans in truck, and drive shaft came out and bent. I sent him to the wrecking yard and he came back with drive shaft, I think he said those were aprox years. I usually just take my tapemeasure and find one that is correct lenth. Although some wrecking yards are like the K-Mart auto parts stores and if they can't look it up by application they don't know what to do. I would try that make and model, but also make sure the ujoint at diff is same width, they used small and large ujoints. I think the small joints were only in older trucks pre 75 aprox. though.