Does a drum to disc conversion increase or decrease wheel offset?

[Josh69]

Beefy, since you seem so 'knowledgeable', I share with you my idea, and you tell me if I'm completely off base.

1) If I knew that the hat thickness was the only dimension that would change on my rearend track width, I could measure the thickness of my drum at the mounting surface, and I could get a measurement of the hat thickness of the disc hat that I intend to use. If there is a significant difference, greater than +/- .125", than I would use a spacer and/or decide if it was feasible.

2) If I knew that a disc spindle vs a drum spindle was the cause, I would consider whether to machine my drum spindles, or use a kit that required disc spindles

3) If I knew the hub was a cause, I would also consider whether or not to go with a kit that I can machine down my hub's outer diameter and reuse, or a kit with a disc hub.



Make sense?