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Message: <blockquote data-quote="idatahoe" data-source="post: 27955" data-attributes="member: 15122">Thank you all for your replies! Looks like I can't do multi-quote on here...Re: The video. That was helpful. I do think with the posi-lock, even wiring isn't even a concern. And most of the time if I'm using 4-low, I'll just want first gear anyway.About the 261 vs 241, would you recommend a 261 or 241? It does seem like upgrading the case is more involved than just a snap ring.Speaking of the output shaft snap ring upgrades, I'm not quite sure what to get. I can't find "Gilly's Transfer Case Savers" available anywhere.I do see upgraded snaprings here: <a href="https://www.oregonperformancetransmission.com/product/SUP-K067.html" target="_blank">https://www.oregonperformancetransmission.com/product/SUP-K067.html</a>And this split bearing retainer here: <a href="https://www.oregonperformancetransmission.com/product/SNX-100420-02K.html" target="_blank">https://www.oregonperformancetransmission.com/product/SNX-100420-02K.html</a>Does sound like a fairly common failure (if there's any failure) so probably something I should address while I have it on the bench.I'll need to count my splines to double check, but I think 27 is the number I need to get. As for the driveshaft, I assume they are identical between Tahoe, Suburban, and K1500 trucks?The only wiring I need to get right is for the speed sensor for the speedometer, right?I didn't realize that these t-cases were always engaged. At first we were confused because we only found 3 positions on the transfer case and expected 4. But it seems like it's low, high, and neutral. I guess the front axle disconnect is what's able to give you 2-high.I recall your username on some Excursion forums when deciding between a Suburban, Tahoe, Excursion, or Expedition. Are you happy that you switched into the Chevy realm?</blockquote>