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Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by RyansRod, Oct 5, 2002.
Anyone have this combo. I have a 4L60E, an NP241 case and 3:73s in the rear end.
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3:73s in the rear end
[/ QUOTE ] what about the front end /forums/images/graemlins/shocked.gif yes you should do ok my bet is you will wish you had 4:10's but you will have good rpms on the highway /forums/images/graemlins/smile.gif
Will it be OK to go into overdrive though? All I'm concearned with is puting as little stress on the transmssion as possible while getting good mileage.
yes it will be ok i wouldnt put it in overdrive when climbing big long hills but just going straight on the freeway yes it will be fine /forums/images/graemlins/smile.gif
I have 3.54 with 35" and on the highway I am fine although sometimes I downshift manually on steep grades. On the trail, I have to use the throttle more than I like to sometimes but I think I might change to 4.10 or 4.56 when i know that I will be doing more trail and less highway.
How about the 373's with 36" tires and a TH350/NP-203 combo ???? Will see more highway use then anything else till I get a Dana 60. Then gears will be changed to 4:88
You will get better milage if you do a gear swap. I went from 3:42's and 31's to 4:56 and 35's and was getting better milage. The engine didn't seem to work near as hard as it did when it was stock. I noticed a big gain especially driving in stop and go traffic.
I had 3:73s and it was fine. I love my 4.11s now tho!!! /forums/images/graemlins/rotfl.gif
Im running 3.37's and 35's with a 700r4. It drives good for the most part. I have run into some pretty strong headwinds and had to run in D instead od OD. I dont think there is enough power but it doesnt do real bad. Im going to 4.56's and 36's. /forums/images/graemlins/thumb.gif
I have 3.08's and 35's because the previous owner never re-geared. Luckily the motor was rebuilt very well and has plenty of torque. I can still do freeway speeds even uphill without much problem, but I have to use more throttle than I would like when offroad. I am looking forward to upgrading to 3/4 ton axles with 4.10's as soon as I can afford it! /forums/images/graemlins/burb.gif
i ran 3.73 and 35 in my 91 for about 3 weeks.it was horrible on the e-way the converter would never lock-up unless your going down a hill.i was running 1800rpms at 80 mph.i got 4.56's now and run about 2600 at 80mph now.i think you can damn near run 4.88's and the rpms will still be reasonable at highway speeds.
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