Rear Drum to Disk Conversion Spacer Plate Spec's for 2003 nbs to 88-98 obs.

[dfarr67]

Can anyone confirm the axle flange bolt pattern and axle diameter. Going to get a set made up (89 K1500) and also welcome others that are looking at buying a set of these. Preferred material will be steel. First piece pricing is $45ea or $23 for 10 pcs or more. This may change.

GM axle tube diam= 3in, horizontal bolt spacing 3-9/16in, vertical bolt spacing 2-27/32, bolts are 3/8in fine thread grade 8. The spacer also needs to be 20mm?

 

[rescurat]

Planing on doing this swap myself as soon as i find the suitable parts at the local pick-a-part, the spacers were the missing link for me as well.

 

[atyates]

I had to get a local machine shop to machine mine cause I couldn't find any spacers online anywhere