Good Wrench Men,

I am trying to replace a Stronglight BB on my 40 yr-old Gitane TdF. It’s long overdue. I’ve removed all but the fixed cup and I am, or rather it is, stuck. Really stuck.

I have a Park BB tool, but it is 36mm. This Stronglight cup is between 37mm & 38mm. I have no wrenches with a face that could grip the tiny purchase area of this cup.

So, I’ve been trying the Sheldon Method. And I’m STILL having no luck in loosening that d*mn fixed cup.

Got the 1/2" bolt & half-dozen lock washers. First, I included a couple rubber washers at the contacts with the cup. I'm thinking the rubber will stick and improve the friction. Ha. Rubber disintegrated from the pressure. Okay. Back off, clean away rubber remains, & start over.

Bolt is from inside BB bracket. Nut on the outside. Following Sheldon's instructions. I've cranked it down and put all my not-inconsiderable-weight on the torque. No luck. Ugh. I've filled the inside with dry lube (spray type), as it's what I have. Not sure what to try next. No vise available. No crescents that size that have clean face to grip that tiny edge purchase the fixed cup offers.

This is a replacement job, so I do want it off. The cups are technically serviceable, but they & spindle have a few pits and scars. It really needs to be replaced. I figure 40 years is good enough. I have options in my parts box. Phils, OMAS, whatever. But..., I gotta get this damn fixed cup off first.

Any advice for me at this stage?

Thank you in advance.