This Kit is for use with your standard 3500 lb Trailer axle and mounts to your 4 Hole Brake Flange. In order to use the Slip Over style of Kodiak Trailer Rotor, you must have 14 inch wheels or greater, it will not not mount in 13 inch wheels. Using Kodiaks Slip Over Rotors will add about 1/2" to the over length of your Axle/Tire and wheel Assembly. This means that the axle with Slip Over brakes will extend 1/4" further than the Axle without brakes (on a tandem axle set up), which is not an issue and will not cause any problems.
This Kit includes:
(2) Kodiak Koda Guard Coated 225 Calipers with Stainless Steel Backed Brake Pads Pre-Installed, also includes (4) Stainless Steel Kodiak Slide Pin Caliper Bolts, (2) Dacromet Coated Slip On Caliper Mounting Brackets, and (2) Dacromet Coated 5 Lug 5 on 4 1/2 Slip Over Kodiak Rotors as well as an instruction manual for installation
We additionally would recommend as an Add On, the required Caliper Bracket mounting bolts available to under the title of the listing in either Zinc Plated or Stainless Steel.
If you are switching from Drum Brakes to Kodiak Trailer Disc Brakes
It would be recommended that you select the kit that contains the Hubs as you will be needing to discard your Brake Drums to use the standard idler hubs in conjunction with the Slip Over style rotor kit.