Speedway Tech Talk - Ford Juice Brakes Versus Self-Energizing Brakes

[@johnbehneman1546]

Great video Tim!!!! Thanks for sharing and I learned so much!!!!

[@troybump3413]

I have a banjo rear end with juice brakes and I think it’s out of a 1940 ford. How do I identify the rear end?

[@bluedog373]

Excuse me but they are shoes or lining not pads.

[@kylefields8618]

Hello I have a 1947 dodge deluxe coupe that Iv stuffed a 702ci GMC V12 down in and i'm looking at upgrading the brake system but I don't want to change the front end. I've converted to power brakes with duel diaphragm booster and duel chamber master cylinder. I've thought about changing to self energizing drum brakes instead of stock juice brakes. Do you have anything that mite work for me?

[@speedwaymotors]

I'm sorry to say that we do not have any drum brake backing plates that would bolt up to the stock Dodge spindles. In order to upgrade your brakes with these self energizing backing plates you would need to update the entire front suspension, which means modification to the frame so that you can use a single front leaf spring as an early Ford car would have.

[@kristil.turnsk5793]

Hi, The later brakes in my 1951 Plymouth and early 50 Dodge trucks have two wheel cylinders, one acting on the front shoe and one acting on the rear shoe. Both shoes become self energizing with this set up. Some of the 50s Dodges and all of the Desoto/Chrysler drums are larger than the Plymouth brakes. All internal expanding brake systems with anchored bottom brake shoe have at least ONE self energizing brake shoe. Our friend did not explain the self energizing brakes well. On the original 40s Ford brakes having anchored brake shoes, The front brake shoe self energizes while the rear one just drags. Compare a radio flyer wagon going forward and then drop the handle, it digs into the dirt causing self energizing. If the wagon were backing down with the handle on the ground, it just drags and no braking action occurs.