I'm chasing the spacer that goes inside the axle tube between the wheel bearing and the axle. The late box I have had 6mm spacer, but I need a 10mm for the conversion

6mm inside and 15mm outside is all I have seen.
10mm would be custom, unless some obscure model has them.

The long axle gearbox we're putting into a straight axle conversion has 6mm spacers and the axle bearing sits 9mm into the axle tube. The short axle end housings have the bearing only sitting 5mm into the axle tube and I've found type bearing caps that are recessed 4mm further than the 1500 long axle bearing caps. So the axle bearing will sit 4mm closer to the wheel, requiring the 10mm spacer. I've found one factory 10mm spacer, but still need a second one