So I was cleaning up the interior of the xjs last night, and came across something that seemed odd to me.

I have the leather wrapped "knob" type shifter, not the "tee" type, and it's looking pretty rough - dirty, dried out, scuffed. I have a wood replacement that was either made by or for the previous owner - tried it but didn't like it - way bigger than the original, some rough edges, and the emblem didn't line up straight.

Next idea, maybe I'll try to make one? So I measured the threads on the lever - several times - and what I came up with was 5/16 - 20. That's not a standard thread in any system I'm familiar with. I'm going to check it again to be sure I wasn't too tired or extra stupid or distracted last night, but I'm pretty sure, also no bolt I had fit the knobs.

That leaves the question, two questions really - is that the right size? And if so, why would they do that?

Thanks, Eric

 

Update - looks like the answer was tired dumb and distracted: M8 - 1.25

The thread gage still did seem to fit better than it ought to have though.

I guess measuring twice isn't enough, I've got to think too!

Eric

 

Get an M8 nut and see if it fits the shifter

 

I did find a M8 bolt and it fit the knobs, I'm just surprised how well my thread gage fit the shift lever. I knew the sizes are close, didn't think they were - that- close.