I guess it doesn't matter now since you already got one but I'll ask anyway. Is the shaft for a manual trans or an automatic, there is approx 3/4-1" difference in overall length. If I remember correctly the auto front shaft is longer than a manual front shaft, and vice-versa for the rear shafts.....I hope you got the right one from the wrecker

Oh and If the u-joints are good on the wrecker shaft (IF) than don't feel so bad cause you have 3 $25 u-joints in there plus the time to install them....$100 doesn't seem too bad but $50 is way better!