Brake Assembly for 12 Inch Brake Drum With 4-Bolt Mounting Pattern

Question:

I have a 2002 ASM livestock trailer. It has Dexter 12x2 brakes on it that need to be replaced. Pictures included. The problem I am looking at is that the 12x2 brakes you have in stock have five bolts to attach to the axel. Mine has four bolts. I would like to replace the whole assembly but don’t know if the 12x2 drum will work with the new kits. Please advise.

asked by: James B

Expert Reply:

Is there any tag or label on your axle that would help identify it? You could possibly have a AL-KO/Hayes axle that used a 4 bolt pattern that measured as follows:

• The top two holes are 3-1/8 inches apart
• The bottom two holes are 2-1/2 inches apart
• The top row of holes is 3-3/8 inches apart from the lower holes

I've provided a photo showing these dimensions. If the spacing matches up, and your existing brake drums are 2 inches deep, the # 23-105-106-09 brake assemblies would be the correct replacements.

If the brake drum is deeper, at 3-3/8 inches deep and the existing brake assembly has a 4-bolt pattern that is 3-7/16 inches across and 3-5/8 inches across vertically, again measured center to center, the # K23-532-533-00 would be the correct brake assemblies.

expert reply by: Mike L