NVG149 Transfer Case On GMT900 Sierra Denali

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02-09-2019, 06:23 PM

#41

Time2Kill

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Quote:

Originally Posted by randeez

a little thread dig, but was searching a few of these swap threads wanted to see if any issues come up with this swap?
it look like there is a connector on the case - a speed sensor? i would just need to plug it as the awd is all mechanical correct?
should share the same 6bolt pattern as i have? - most of these swaps are to a 4l80, 6l80 should bolt to the same transfer case?

ive fought with trying to get the bw4485 to hook at the track for a while now, pulling the abs fuses keeps it from braking to control wheel speed but a dozen lights pop up on the dash. With the fuses in daily driving around 95% of the time it's not to intrusive. biggest problem with launching the bw unit having an open differential, as soon as the front unloads all the power wants to go to the spinning front wheels.

That connector on the transfer case is for the speed sensor. All transfers cases have it if your 4WD or AWD, it's where the ECM picks up the output shaft RPM so it knows how fast the truck is going. If your 2WD/RWD, the speed sensor is in the tail cone of the transmission. Connector is a direct plug and play between the transfer cases. The 4L80E and 6L80E share the same output shaft size/spline and also the same bolt pattern. If it bolts to a 4L80E, it bolts to a 6L80 and vice versa.

If you need a gear for the NVG149 so you can bolt it up to the 6L80 or 4L80E, shoot me a PM and I can send your current pricing.

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02-09-2019, 06:57 PM

#42

randeez

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Good to hear you're still providing these and thanks for the info, time2kill. it sounds like a much better tcase for what im trying to do.
got a few things goin on but will be keeping an eye out for a cheap donor to rebuild in the mean time. or if you come across a np149 and are interested in selling me a complete case ready to go let me know (see your part out link for those year trucks)