The Stovebolt Site Forums The Shop Area The HiPo Shop '52 3100 Disc brake conversion

Ive searched, and couldnt find too much about this question specifically.

Im looking to convert my front brakes to disc.

Im going to be using a Sids 4" dropped axle, and was wondering who's converted to discs up front.

I dont really want to use a mustang II kit. Ive seen a few kits online for disc brake swaps, but It says spindles must be machined down to work, and most of the kits are 5 lug and not 6

Anyone have any input on this, Can you convert to disc without modifying spindles?

Ive seen kits anywhere from $200 - $1000, The huge price range makes me wonder.

I've done it and it was simple.It's NOT just bolt on...you have to modify it a bit.I'm using a stock axel upfront with 5 on 4.75 disc drakes.They do make a 6 lug kit as well, but since i'm going with an open driveline set up i chose the 5 on 4.75 kit.The kit comes with a "spacer" that slides into the spindle so that the inner bearing rides on, no mods there.The only mods were to the bracket that bolts to the spindle, as when you turn far left or right the bracket hits the kingpin lock.....so that needed some work. Also the instruction said to drill out the lower mounting holes of the spindle and tie rod controll....i didn't do this as there is no need.I replaced the existing bolt with a Grade 8.As far as price goes it cost me about $700 with a power booster that goes under the cab.Don't worry ill_52 it's not that bad to do.....good luck



1949 Chevy 1/2 ton
250 I6
TH350

JC49, Could you tell me what kit you bought?

Sure il_52.....the kit i bought is from Classic Parts (ClassiscParts.com) # 71-974C5 and if you look at #71-974C6 it's the 6 lug pattern, but read the item description in case you are running your original wheels,it may not work or some mods to the rims or calipers are in order. Just type in the part #'s on the search feature and you will see both kits. Let me know what you think and if you got more questions just shoot.....

i did the disc con version.had to do alittle grinding.cost,239and change atspeedway motors.

There are at least 2 different 6 lug kits. One made by CPP and one made by Performance online. Most of the vendors get the kits from these 2 suppliers.

I have used the CPP kit, and am curently dealing with their customer service about bearings. I don't have anything positive to say about CPP's customer service, or the quality of the bearings supplied for extra money. I have gone threw 2 sets of the roller bearings in 3 years. I will update this if CPP's customer service surprises me and replaces this last set.

the kit i used fromspeedway,had tapered bearing,seals,everthing down to the cotter pins.they use 11 inch disc.there were tags chev,i am assuming that these are the camaro disc.

Bigbadswingdaddy if you can let us know what the customer rep says that'll be great...!When I ordered my parts from Classic Parts the boxes had CCP on them...and yes I also verified their price tag and it came out to be the same. My truck is not on the road yet since I'm still working on the 4 link rear suspension ...please keep us posted ....many thanks


1949 Chevy 1/2 ton
250 I6
Th 350

**UPDATE**
CPP has done right by me. They are shipping me a new set of bearings and miscelaneous parts. I had a long phone conversation with one of the reps following up. Apparantly I am the only one that has had problems with the bearings.

I do use my truck as a daily driver and a work truck. Perhaps the bearings are not up to the task of carrying loads. Perhaps I got the only bad set of bearings. Anyway the replacement bearings from CPP will not be going on the 59 1/2ton. I will instead use them on my 1940 project.

I dont mind a little grinding. What do you have to grind, the spindles?

I saw this speedway motors kit for $239 and it looked pretty good, but in the ad it lists chevy passenger cars. I wasnt positive it would work for truck applications..

Id imagine, that this is still manual brakes then, since it doesnt come with a power booster?

Good deal Bigbadswingdaddy...that is customer service.I'm sure you'll get your 59 on the road in no time,and many thanks for the update.

you are right i still have manual brakes.the grinding is not on the spindels.the back side of the calipers interfer with monting brackets.there is interfernce, with the hump on the axel.the kit is sold for chevy pickups.i am using my kit on a1954 gmc.is there a differance?

no difference between chevy and gmc axles.

http://www.speedwaymotors.com/Speedway-Brake-Kits-GM-Metric-Mustang-II-to-1949-54-Chevy-Spindle,2014.html

Is this the correct kit to buy from speedway motors?

if you check there catalog no318,pg 96 49 to59 chevy1/2disc brake kit. if you can,t find it call them,toll freeeeeeeeee