Slight "Bump" Under Braking (Driveshaft Related)

[OCL]

In the last 4k miles I started to get this slight "bump" or a feeling of being nudged forward at low speed when I'm about to make a full stop. Sometimes I feel it when release the brakes from a full stop while in Drive when the truck just starts to move. Definitely driveline related. I looked it up in Google and AI said it's most likely my driveshaft Slip-Yoke is dry and needs to get lubricated. The procedure is to separate the two pieces of the driveshaft so the splines can by lubricated. Has anyone done this procedure or had it done by a dealership? My truck still under warranty but I'm nervous about asking them to do this because they might screw up the reassembly and I end up with a vibration. AI said the two pieces of the driveshaft must be put back in the same exact manner otherwise driveshaft vibration will occur. My truck is smooth as silk at high speed right now and I don't want to ruin that. Any experience from other members? Any wisdom regarding this?

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[Bob902]

In the last 4k miles I started to get this slight "bump" or a feeling of being nudged forward at low speed when I'm about to make a full stop. Sometimes I feel it when release the brakes from a full stop while in Drive when the truck just starts to move. Definitely driveline related. I looked it up in Google and AI said it's most likely my driveshaft Slip-Yoke is dry and needs to get lubricated. The procedure is to separate the two pieces of the driveshaft so the splines can by lubricated. Has anyone done this procedure or had it done by a dealership? My truck still under warranty but I'm nervous about asking them to do this because they might screw up the reassembly and I end up with a vibration. AI said the two pieces of the driveshaft must be put back in the same exact manner otherwise driveshaft vibration will occur. My truck is smooth as silk at high speed right now and I don't want to ruin that. Any experience from other members? Any wisdom regarding this?

https://www.ranger5g.com/forum/threads/how-to-lubricate-your-driveshaft-slip-joint.16648/