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Discussion Starter #1
It’s not stock so not the notorious problem with these. Truck is straight axles front with 4 linked cantilevered rear. So I re geared 3 months ago to 4.30 gears since I have 37 on truck and in return created this vibration. So I got a new driveline built wanted one 1 inch longer anyway to put slip yoke back in since I lifted rear 2.5 inches. Anyway new driveline solved my vibration for about 3000 miles now it came back except different getting it only between 65-75 when I let off throttle it’s worst then mellows out but still there until I get below 65. So I think premature u joint failure I throw 2 new ones in and get driveline balanced again. Now it’s gone for most part but slightly there at same speeds but only when it’s unloaded like cruising down hill where there’s no load on drive line it’s not ridiculous but still not there. Anyway I never seen gears vibrate or transfer case but wanted to ask you guys see if you have or anything I’m over looking.. oh and drive line angle not problem transfer case is 8 deg down and pinion 8 deg up and brand new toyo r/t are road forced twice
 
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