wildbanshee90 Posted July 6, 2015 Report Share Posted July 6, 2015 I have a 2002 escalade with a non repairable nv149. I havent been able to find another in my area. I bought a bw4481 with low miles for 200$ out of an 07 denali. Are they interchangeable or will it not just bolt up and go Quote Link to comment Share on other sites More sharing options...
1BAD2K Posted July 6, 2015 Report Share Posted July 6, 2015 (edited) They are not interchangeable, it might bolt up, but won't work correctly. The borg warner is electronic and uses the bcm and the brakes to control wheel slip. The 149 uses a mechanical method, viscous coupler. Edited July 6, 2015 by 1BAD2K (see edit history) Quote Link to comment Share on other sites More sharing options...
wildbanshee90 Posted July 6, 2015 Author Report Share Posted July 6, 2015 There are no electronic connectors on this transfer. I thought the bw4482 2 speed was the electronic Quote Link to comment Share on other sites More sharing options...
1BAD2K Posted July 6, 2015 Report Share Posted July 6, 2015 (edited) ... Edited July 6, 2015 by 1BAD2K (see edit history) Quote Link to comment Share on other sites More sharing options...
1BAD2K Posted July 6, 2015 Report Share Posted July 6, 2015 Quick search, I found Bear explaining the differences. I've asked this guy a few questions about t cases before, and I believe he knows his stuff: The '03 and up Yukon Denali's and Escalade's used the BW-4481, which is an 1-speed, full time AWD, open differential that worked in conjunction with traction control unlike the NVG-149's that were in the trucks for all years and YD and Esky's before '03. The regular Yukon's, Tahoe's and Suburban's could have came with the BW-4482, which is a 2 speed, full time AWD, open differential style that worked in conjunction with traction control and had a low range lock. So there are quite a few trucks running around that have the correct front differential to be used with the best of the bunch NVG case. Quote Link to comment Share on other sites More sharing options...
Thatblacksss Posted September 3, 2021 Report Share Posted September 3, 2021 Soooo what will happen if I put a bw4481 in my sss.. my nv149 kinda got busted and the closest 149 to me that I've found is 20hr away with no shipping Quote Link to comment Share on other sites More sharing options...
Time2Kill Posted September 13, 2021 Report Share Posted September 13, 2021 The bw4481 is a horrible tcase. I put one in my SS years ago and took it out within a week. You will get horrible front wheel spin with it since it is basically an open diff. Go to www.car-part.com to find a used one or buy a rebuilt off ebay for about $1000-1100 shipped. Many rebuilders list them as a NP149 since new process bought new venture gear. Quote Link to comment Share on other sites More sharing options...
JohnKimbler Posted May 6, 2022 Report Share Posted May 6, 2022 I just put a BW4481 in my SS. I’m just now doing the research after the fact. My np149 was no good and I’m in a desperate situation and had to do something fast. Found a transmission guru 100 miles away, drive to him and paid 1600 for a brand new BW4481 installed on my Silverado SS in drives fine but the rear drives shaft is a tight fit. Tomorrow I’m having it cut back a couple inches to give it proper play. Am I screwing up here? Tell me I’m a be alright! Lol Quote Link to comment Share on other sites More sharing options...
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