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  1. TSB 20-2277 2019-2020 Ranger - Shudder/Vibration When Accelerating From A Stop

    i have about 300 lbs in the bed right now lowering the bed. That improved but didn’t get rid of shudder initially. I did this because previously I observed that when the bed was loaded with 500 pounds, it fixed it. I initially attributed this to the lowered ride height/pinion angle. Recently...
  2. TSB 20-2277 2019-2020 Ranger - Shudder/Vibration When Accelerating From A Stop

    Question for Phil Schilke…. I had the TSB done to adjust pinion angle. It made it better but not fully fixed. I noticed that shudder is nearly negligible when you don’t stomp on accelerator and it is worse when you are an incline. I also recall reading a comment where a user upgraded springs...
  3. TSB 20-2277 2019-2020 Ranger - Shudder/Vibration When Accelerating From A Stop

    Thanks, yes the shudder is very transitory, right at start from dead stop. As I mentioned in a prior post, I had loaded my truck with 500+ weight a left for a week. While loaded no shudder at all. Once unloaded, came back so the resultant pinion angle from that lowered height was a sweet...
  4. TSB 20-2277 2019-2020 Ranger - Shudder/Vibration When Accelerating From A Stop

    Thanks Phil, I take it there is a way to lower the rear ride height w/o voiding warranty? At this point probably wouldn’t have to lower rear too much because the TSB adjusted angle to some extent. They also suggested putting in a Ford cust service complaint.
  5. TSB 20-2277 2019-2020 Ranger - Shudder/Vibration When Accelerating From A Stop

    Couldn’t find, seems too new. But that’s the updated TSB they mentioned on my invoice. Not sure how to lower the rear… I did it by putting 500 lbs in the bed and that lowered rear by 1”… shudder disappeared. Dealer said the only way would be to reform springs but that would be an aftermarket...
  6. TSB 20-2277 2019-2020 Ranger - Shudder/Vibration When Accelerating From A Stop

    So I had TSB 20-2277 done and it fixed 80% of the shudder problem. I know that if I lower the rear ride height by 1”, the shudder goes away but they can’t do that without voiding my warranty. Any thoughts on if a 1.5” level at the front would effectively do the same thing as lowering the rear...
  7. TSB 20-2277 2019-2020 Ranger - Shudder/Vibration When Accelerating From A Stop

    I have a 2020 XLT Sport and have had the start up shudder right from the beginning. Originally they told me it was normal so I let it slide but it annoys me. I’ve been reading through all these posts and especially appreciate the insight that Phil Schilke provides. I too am an engineer but...


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