Thread: 3.73 to 4.11s - Is it worth it?
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07-21-2004 01:46 PM #1
3.73 to 4.11s - Is it worth it?
I have a Supercharged Suburban with 3.73s in the rear. I just put 20" wheels which added about one inch to my overall tire diameter. This slightly affected performance, so I'm considering going to 4.11s. I'd go a little higher (numerically ), but the next step is 4.56s. I think 4.56s for a daily driver would be a little to steep. Is a change to 4.11s from 3.73s going to be noticeable? I don't want to spend the money and have little to no difference in performance. I think I can live with the slightly higher RPMs on the freeway.
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07-21-2004 02:37 PM #2
you should gain about 500 rpms to go the same speed that the 3.73 was running across the board.
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08-18-2004 09:06 PM #3
It's done
I upgraded to 4.11s and the difference in performance is noticeable. If I could do it again, I'd go with the 4.56s though.
Mike was a great guy with a lot of knowledge and always had good things to say. May he rest in peace. I hope he's up there playing with hot rods now as well.
We Lost a Good One