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NP203 ratios

sickquad

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Anybody know what the ratios in hi and lo of a NP203 are. I am assuming hi is 1:1 and I think lo is around 2.5:1 but I cannot remember. I'm trying to figure out what gears I should be running.

By the way, yes I did a search.

-Chris
 
I think lo is just 2:1, you are right on the 1:1 /forums/images/graemlins/thumb.gif
 
Are you sure you have a 203 case? I just read your profile and it says you have a 700R4 and 10 bolts front and rear. If I'm not mistaken, a rear 10 bolt and 700R4 weren't an option in any blazer with a 203. Unless of course this isn't that blazer or maybe you have a 208 case? I'm just wondering because I've never seen anybody use an overdrive tranny with an uber-heavy 203 full time transfer case before. /forums/images/graemlins/screwy.gif

If you have a 208 it would be an aluminum case with a 2.62:1 low range and 1:1 hi range. It would also be part time so you would have hubs up front (possibly the auto-locking ones)
 

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