Those of you who converted to rear disk, can you feel much of a difference?

[WyattTX]

I see many talk about rear disk conversions here. All the factory front disk/rear drum trucks I've driven seem to have great stopping power (if the truck does have oversized tires.) The only four way disk trucks I've driven was a gmt800, and a 3rd gen Dodge 1 ton. Both of those stop good, but they are also ABS, so they may not be an accurate comparison.

Also, do the conversion kits use any parts interchangeable with the front disk? Thanks.