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Message: <blockquote data-quote="Dinadeira" data-source="post: 1579125" data-attributes="member: 29969">Hey, just wanted to update, I just finished installing the 4.30's myself this weekend! This is my first time working on a differential, and I'm very proud of it, because I took it for a test drive and there was no noises from the rear!!! (No whining or clunking to speak of, woo!)I guess we'll see how I like it for casual street driving, but first impressions from my test drive are positive. I really can feel that extra torque now and the engine rev's up significantly faster now! I haven't had the chance to take it on the highway yet, so we'll see how I feel about that. But now that I know the process and have the tools, I can always just switch back to my stock 3.27's if I so wish <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile    :)" loading="lazy" data-shortname=":)" />I was wondering, what do you all think of the break in period? My gears were from Yukon and they said "no hard acceleration within the first 500 miles" :'(With it being more of a weekend car, it's gonna be a while till I hit 500 miles. I don't know if I can control myself for that long, lol. Any advice?Edit: I misread my break in procedure, it actually says "No Hard Acceleration in the first 100 miles" and "do a gear oil change at 500 miles". Not as bad as I thought <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile    :)" loading="lazy" data-shortname=":)" /></blockquote>