Trade 3.55 for 3.23 Sure-grip

Guys,
I would like to say that these 741's are just as strong as the 742 and 489 cases. The pinion is slightly smaller but it is Still bigger than a Furd 9" pinion and everyone uses them for racing!!
I have a 741 with 3.91's in it in the Cuda and it held up to the 500+hp of my 440 6 pack setup. I personally have never seen a failure of a pinion in any 8.75 rearend. Jus' sayn"