TR4/4A Who said the TR4 round shift knobs were NLA

[Zitch]

They have them at ACE hardware.

 

[pdplot]

Many years ago, I fitted a doorknob to a TR3 to replace that crappy rubber knob.

 

[TRspitfirefan]

Good find.
I looked all over for a plain black gear shifter knob for my spitfire. After much effort, I finally found I could order a Dorman HELP brand universal Knob (part# 76933) from my towns O'Reillys.
The next day, I went to work and found that the boss had replaced the knobs on one of His Automotive lift. Exact same knobs- in stock at the local NAPA.

 

[TRMark]

Many years ago, I fitted a doorknob to a TR3 to replace that crappy rubber knob.

Did you garner a nickname for doing something like that.

 

[PeterK]

Sometimes, parts are NLA because they are common items. A 5/16-18 ball that fits the TR4-6 range also fits Corvette and many GM muscle cars, Hurst shifters, etc. A 7/16-32 shift balls is not and only fits the TR3/3A AFAIK.