Where you ever able to do the nvg149 swap successfully?

 

I am still waiting on the input shafts from EAD performance. Its been 4 weeks since I ordered them so I expect to have them real soon.

TJ

 

What are you doing as far as the transfer case adapter for the 6 speed?

 

Any updates on swapping in the NVG149 in place of the BW ?

 

It should bolt right up. I've got a NVG149 and a Borg Warner AWD case from a 6L80 and they share the same bolt pattern. The input shaft sticks out the same amount as well so it should be direct bolt on.

I'll have a 6L80 here in the shop in a couple of weeks and I will confirm as long as I still have my nvg149 here.

 

 

Sounds like a pretty straightforward swap... Would need the BCM and ABS modules flashed to 2wd software though, as the BW units work in conjunction with the brake system. It will need to think it's a rear wheel drive vehicle to disable that functionality.

 

I've had two customers that bought input gears and just swapped it straight out with no issues.

The BW case is basically an open case kind of like a open rear end with no posi. Normally the ABS module would control where power goes by applying the brakes to the spinning wheel so power gets diverted to another wheel with traction.

The NVG splits power from the front to rear with the viscous coupler unit inside of it (typically 38%/62% IIRC but varies depending on traction), but doesn't seem to interfere with the braking system setup of the BW units. Not saying that it's right or wrong, but seems to work, just passing along what I heard.

 

It won't interfere unless the 149 does allow wheelspin. Seen this at the track when the front end unloads and smokes the front tires. In this case, the ABS would kick in and apply the front brakes. Not really the greatest thing when trying to go fast lol. But otherwise it should work fairly well.

 

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.