Yes boys and girls, you REALLY need to carry a spare...

js218 wrote:
I carry 1 drive, 1 steer for my rig

Hmmm.... drive and steer use the same wheel and tire. One standard steel wheel spare covers both, even if you have alloys. What chassis model and year do you have?

The Toyota chassis from the 70's through to 1986 was the only chassis that had different front and rear wheels. I know because I owned one for 24 years. The DRW axle came years later through a recall, introducing the difference from the front wheels.