Shifting
Fleet Mechanic
Joined: Feb 2004
Posts: 1,509
Likes: 333
From: Arlington,Wa
FWIW....I have a T-19 behind a 460 and i have the same issue. Clutch is worn but double clutching or giving the throttle a blip will get it to drop into 2nd gear. And the T-18 I had in my F-150 (behind a 400) did it too. My money is on worn synchros in these situations.
Tuned
Joined: Mar 2015
Posts: 293
Likes: 45
From: In the 860
I noticed a similar issue with my truck when I first got it.
Previous owner swapped in the NP435, as it was originally a C6 truck. He said the clutch was new (I personally would never use a used clutch). I found that a double clutch down shift and a slight rev helped.
I was still unhappy with how the pedal would return (seemed like it was binding). I adjusted the linkage, and that seemed to cure all of my issues. Positive engagement into second, and the pedal returns nicely.
Previous owner swapped in the NP435, as it was originally a C6 truck. He said the clutch was new (I personally would never use a used clutch). I found that a double clutch down shift and a slight rev helped.
I was still unhappy with how the pedal would return (seemed like it was binding). I adjusted the linkage, and that seemed to cure all of my issues. Positive engagement into second, and the pedal returns nicely.
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