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Slop when I let off the pedal - Redland1 - 07-26-2026
So in noticing a slop when I let off the pedal while driving and it’s noticeable when I’m hooked up to a trailer but worse when bobtail. What do I need to do check ?
RE: Slop when I let off the pedal - Rawze - 07-26-2026
slop in what>?... tranny?, engine?, the hood?, rear ends? ???
maybe some history, what engine/truck, etc. too?.
RE: Slop when I let off the pedal - Redland1 - 07-27-2026
(07-26-2026 )Rawze Wrote: slop in what>?... tranny?, engine?, the hood?, rear ends? ???
maybe some history, what engine/truck, etc. too?.
2003 international 9900i with an ISX,13 speed,3.90 rears. I’m guessing the slop is in the drivetrain somewhere and it’s especially noticeable in first gear when I let off the pedal to the point where I get pulled forward from my chair.
RE: Slop when I let off the pedal - Mrkentee - 07-28-2026
I had a front differential that had a lot of slop in it. People said it was normal but I replaced it with one from another remanufacturer. I’m not knowledgeable in taking those apart and making adjustments.
RE: Slop when I let off the pedal - Yauchout - 07-28-2026
I have had motor mounts cause that but realistically you should check your entire drive line motor mounts u-joints differentials hell even suspension bushings could cause slop. I have even seen bolts all but 3 of the bolts rattle out of the transmission bell housing that that made a truck drive like what could be called slop... really online not being able to see it its anyone's guess
RE: Slop when I let off the pedal - Redland1 - 08-13-2026
Looks like the slop was a bad carrier bearing.
RE: Slop when I let off the pedal - Rawze - 08-13-2026
(08-13-2026 )Redland1 Wrote: Looks like the slop was a bad carrier bearing.
thanks for the follow up.
Hopefully it was installed right, as many shops will attempt to try and make the drive-line as straight as possible at the carrier bearing, and this is actually wrong. there should be about a 2-degree or so offset in the drive-line, shifting the carrier bearing a bit to the passenger side, otherwise it will end up with harmonics in it at certain rpm's, causing ghost vibrations and wearing the new one out faster.
I.E>. it should not be installed so that the drive-line is perfectly straight there.
RE: Slop when I let off the pedal - Redland1 - 09-01-2026
(08-13-2026 )Rawze Wrote:(08-13-2026 )Redland1 Wrote: Looks like the slop was a bad carrier bearing.
thanks for the follow up.
Hopefully it was installed right, as many shops will attempt to try and make the drive-line as straight as possible at the carrier bearing, and this is actually wrong. there should be about a 2-degree or so offset in the drive-line, shifting the carrier bearing a bit to the passenger side, otherwise it will end up with harmonics in it at certain rpm's, causing ghost vibrations and wearing the new one out faster.
I.E>. it should not be installed so that the drive-line is perfectly straight there.
So instead of aligning the yokes with each other, offsetting the one at the carrier bearing about 2 degrees or did I understand wrong ?
RE: Slop when I let off the pedal - Rawze - 09-01-2026
(09-01-2026 )Redland1 Wrote: ...
So instead of aligning the yokes with each other, offsetting the one at the carrier bearing about 2 degrees or did I understand wrong ?
not the yoke(s) ,... the bearing housing placement to the undercarriage.