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Posted

3 spped manual trans when unable to get it into 1st and rev - check the screw on the side, under the top shift lever. It's a slotted screw head. after removal check the length of the shoulder past the end of the threads - should be about 1/4" if it's less - it's sheared off. If the pin shoulder is sheared, it allows the vertical shaft to move up, instead of the internal lever, so it can't engage the 1st/rev rake shaft.

        Use a magnet to find the sheared end (in the lube).

        Can't help in finding a new screw - I had one in another old tranny.

  • Like 3
  • 9 years later...
  • 1 month later...
Posted

hey rfurg, i'm having trouble with my three on the tree not down shifting from third to second. 49 ply. i looked at the tranny breakdown on page 204 in the service manual and can't find the pin your talking about. i did find the screw under the operating lever but can't get at it with tranny still in the car. i plan on dropping the tranny soon. but you didn't give any length or width of said pin. do you have anymore info? i talked to northwest transmission and they are stumped, they don't recall this pin .anymore info would really help. thank you in advance, larry   

  • 2 months later...
Posted
On 12/15/2023 at 10:19 AM, larry montani said:

hey rfurg, i'm having trouble with my three on the tree not down shifting from third to second. 49 ply. i looked at the tranny breakdown on page 204 in the service manual and can't find the pin your talking about. i did find the screw under the operating lever but can't get at it with tranny still in the car. i plan on dropping the tranny soon. but you didn't give any length or width of said pin. do you have anymore info? i talked to northwest transmission and they are stumped, they don't recall this pin .anymore info would really help. thank you in advance, larry   

It is just a 1/4-20 screw, .396 long (from under the head) with the threads turned off .160 of it, down to .150, and a lock washer.

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