so why to they say it is too big...
#22
#26
I don't think that it will be that big of a dog, but 4.10's or even 4.30's seem better matched to the powerband of the cam IMO. But with the 3600 converter that you're planning, you should be able to offset a sluggish bottom end...since you mentioned a lot of highway miles, the 3.73's and 3600 converter may combine to give you the best of both worlds...
#30
Honestly I'm not sure, but I've seen it before, I guess some guys feel that it's not enough bang for the buck ...I've also read of folks recommending against jumping from 3.73 to 4.10's (which is what I'd like to do but that definitely won't happen for a long...long time lol)