TheCollector

my truck has be shuttering and jerking every time i start up either form 1st or in reverse. i replaced both my rear u joints and it didn't fix it. it helped out but still shutters. is it possible 2 bad u joints can cause the drive shaft to bend or warp? all the other gears are fine and don't shutter just 1st and reverse. any ideas on what i can be?

ymeski56

Motor mount?

TheCollector

i checked the trans mount forgot about the engine mounts ill be right back LOL

TheCollector

well i checked the engine mounts they are fine its not that. is it possible that its doing that because i have an 11inch fly wheel and a 10 inch clutch? i hope not besides it shouldn't be shuttering

TheCollector

update with the problem if i ride the clutch it doesn't do it as much could it be low trans fluid/ clutch or transfer case fluid? my truck has the strangest things happen to it

slickjazz79

hey i just bought this f150 and it does the same thing..the seals are junk in the trans and it has been driven with the fluid low..it still barley goes down the road but

after i drive in reverse (any distance, no shutter while im moving), when i push the clutch pedal back in to stop it jerks and feels like i hit a car?

i'm leaning torwards the trans being the problem even though it feels like a rear end problem..

im planing on getting a used one or rebuilding trans. let you know if that fixes it.

this is my first post on this forum thanks to everyone helping out on here!