bluesbish
Full Member
So this could get long winded as that is how I tend to be. bottom line is after I finished my 4 year frame off last fall I had problems with d20 popping out of rear drive high range. finally got it back into the shop to make some adjustments and sort out some issues that never got attention. The d20 is a t-shift that I pulled from a '70 bronco. I made my own twin stick for it but did not modify the shift rails to allow for independant shifting. This is my diagnosis so far. first thing was inspect the shifter for binding or any contact that might be causing my issue. It's not the shifter. in fact, the shifter being fairly tight was probobly the only thing that kept it in gear. didn't have the problem untill the first few times I shifted into low range. second thing was to remove the inspection cover and take a look. everything looks great. it goes into gear all the way, yokes are tight with no end play, very little play between the shift fork and the sliding gear. I ordered a new shifter from WH as I wasn't really satisfied with my home made one but haven't bothered to install it yet. I also ordered new detent springs and ball from JBG as I was leaning towards this being my problem. it does seem rather easy to shift from rear high to neutral compared to the other t-case on my bench(which if I recall is a perfectly good D20) I pulled the detent spring from the rail that I was having an issue with. ball and spring looked fine I guess. compared to the new spring, I found the old spring is damn near a 1/4" longer but not as stiff. I put the new spring and ball in and found that it is now even easier to shift that rail which is certainly not going to help my issue. I pulled one of the springs from the other t-case and it was the same lenght as the new spring but not as stiff. So, I am wondering if maybe someone put a longer spring in to bandaid this same problem. Either way, guess it is time to pull the case from the bronco. Not a big deal but was hoping to avoid this since it gets hard to find time and all like we all know. any thoughts?