NP205 Pops out of low

[Honest Bob]

I have a 32 spline figure 8 np205 mounted to a 4l80e using a nwfab 4l80e adapter, and a twin stick including new modified shift rails from jbcustom that keeps popping out of low (4x4 low and rear low, I havent tried fwd low). It is my first attempt at rebuilding an np205, I put in new bearings, seals, and shift collars. I suspect the teeth on the gears where the shift collars go on are worn out. I dont know the origin of the np205 but I suspect it had a hard life.

Opinions? Can I still get all these parts or do I need to start looking for a replacement?

Are the internal parts the same between a round pattern and a figure 8 np205?

I have a spare round pattern 91 np205 with the 4l80e adapter. I could use that tcase but I am afraid Im gonna have to have driveshaft lengths modified again.

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[MarineOne]

Teeth don't look horrible. Have you tried unhooking shift linkage and putting it in low manually from underneath?

 

[Rusty Nail]

Yep. It's always teh linkage.

 

[Honest Bob]

i have not tried that! Thanks for the tip.

 

[GTX63]

I had a similar issue on a 203 and it was also the linkage. Soaked it in PB Blaster until I could free it up and then worked it back and forth everyday for a few weeks. The truck had been sitting outside for years.