Mikey von
1/2 ton status
Just wondering? I am having major problems with wheel studs and the rotor.
CK5
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has anyone done a 14 bolt semifloat disc brake swap? HELP!!
- Thread starter Mikey von
- Start date
Eight lug shouldn't be a problem.
I'm trying convert a 1992 14sf six lug to disk brakes to put under an 86 K10. I know TSM offers a kit, but I was trying to do it cheaper. I spent a day looking a GM Rotors with no luck. I'm looking at toyota rotors tomorrow to try to find one that will work. If that fails I'm going to call Stainless Steel Brake Corp and check on custom Rotors. I'm sure that will cost. If you can find a 12.5 inch diameter rotor on a 6x5.5 it would be easy.
I've been talking to Dan at Ruffstuff and attempting to come up with an adapter for a half ton rotor (11.5 inch dia)
What have you come up with?
I'm trying convert a 1992 14sf six lug to disk brakes to put under an 86 K10. I know TSM offers a kit, but I was trying to do it cheaper. I spent a day looking a GM Rotors with no luck. I'm looking at toyota rotors tomorrow to try to find one that will work. If that fails I'm going to call Stainless Steel Brake Corp and check on custom Rotors. I'm sure that will cost. If you can find a 12.5 inch diameter rotor on a 6x5.5 it would be easy.
I've been talking to Dan at Ruffstuff and attempting to come up with an adapter for a half ton rotor (11.5 inch dia)
What have you come up with?
Mikey von
1/2 ton status
yes it is 8 lug. sorry if this does not come out straight, 4 beers (ipa's) down and the wife is all pissed at me.
The rotor will not fit on the outside of the axle flange, which it seems ok as it mocks up ok with the rotor on the inside. Eveything seems to line up ok like.
My big problem is the wheel studs. With the rotor on the inside of the axle flange, I need longer wheel studs. Sounds simple. The rotor stud holes are slightly larger than the holes on the axle flange. The guy at les schawb, who seemed cool, says that I need a double tapered wheel stud and he is not sure if they even make them. Double taper mean it is large enough to fit into the rotor tightly, then sized down to fit properly into the axle flange.
I guess my drunk stressed out ass is saying I am having a problem getting this thing back together and the main problem seems to be the wheel studs. I seriously need this thing fixed as I am building my own house and everything comes this friday (stressfull times to say the least). The wife is pissed, I am f'ing freaking out as I need a truck, so what do i do....get drunk. At least I can hopefully get the chainsaw chains sharpened tonight so I can clear the last of the trees tomorrow.
I still need a truck and if i were anything but a broke ass would have bought another by now. Back to more beers - thanks for listening and watching the breakdown of me. hopefully tomorrow will be better!
The rotor will not fit on the outside of the axle flange, which it seems ok as it mocks up ok with the rotor on the inside. Eveything seems to line up ok like.
My big problem is the wheel studs. With the rotor on the inside of the axle flange, I need longer wheel studs. Sounds simple. The rotor stud holes are slightly larger than the holes on the axle flange. The guy at les schawb, who seemed cool, says that I need a double tapered wheel stud and he is not sure if they even make them. Double taper mean it is large enough to fit into the rotor tightly, then sized down to fit properly into the axle flange.
I guess my drunk stressed out ass is saying I am having a problem getting this thing back together and the main problem seems to be the wheel studs. I seriously need this thing fixed as I am building my own house and everything comes this friday (stressfull times to say the least). The wife is pissed, I am f'ing freaking out as I need a truck, so what do i do....get drunk. At least I can hopefully get the chainsaw chains sharpened tonight so I can clear the last of the trees tomorrow.
I still need a truck and if i were anything but a broke ass would have bought another by now. Back to more beers - thanks for listening and watching the breakdown of me. hopefully tomorrow will be better!
SKI-'84K5
1/2 ton status
have you tried using a front stud?
i am looking into this as well since i already have the extra rotors and will just need the brackets and another set of calipers and lines
i am looking into this as well since i already have the extra rotors and will just need the brackets and another set of calipers and lines
Mikey von
1/2 ton status
i guess i can give dan at ruff stuff a call tomorrow, he is the one I got the bracket from. I picked up the rotors and calipers at Napa.
I have not tried a front stud. I will look tomorrow, but I assume that the front rotor sits outside the axle flange. We all know the saying about assumptions though.
Here is a pic that shows the problem
I need the the stud to be about 1/2' longer before the splines that hook up to the axle.
Do the studs need to fit tightly into the rotor before they go into the axle flange? The dude at les schwab seems to think so.
I have not tried a front stud. I will look tomorrow, but I assume that the front rotor sits outside the axle flange. We all know the saying about assumptions though.
Here is a pic that shows the problem
I need the the stud to be about 1/2' longer before the splines that hook up to the axle.
Do the studs need to fit tightly into the rotor before they go into the axle flange? The dude at les schwab seems to think so.
SKI-'84K5
1/2 ton status
i guess i need to know why it can't go the other way, shaft in rotor drum, studs still pressed into shaft and rotor goes on like an IFS front would or most disc fronts on cars?
Mikey von
1/2 ton status
ski - thanks for the comments. I thought that is the way it would go too, but alas, the axle flange is too large for the rotor to fit over.
Mikey von
1/2 ton status
just found this thread on pirate. http://www.pirate4x4.com/forum/showthread.php?t=625929
Guy over there says to use '99 and up rear rotors. Anyone confirm or deny this?
Anyone up in northern cali (redding/chico) want some free beer (as much as you can drink - shoot i'll send you home with a bunch) and pizza to help me get this thing together. I swear my I won't be gettin any from the wife until this headache goes away.
edit - will help with gas $$$ tooo
Guy over there says to use '99 and up rear rotors. Anyone confirm or deny this?
Anyone up in northern cali (redding/chico) want some free beer (as much as you can drink - shoot i'll send you home with a bunch) and pizza to help me get this thing together. I swear my I won't be gettin any from the wife until this headache goes away.
edit - will help with gas $$$ tooo
3car
1/2 ton status
Heres an idea. since you have the rear end apart, take an axle shaft up to the parts house and see if that rotor fits on the outside of your flange. Better yet, measure it and go up there so you dont look like a dildo.
What rotor are you using?
Why are there holes in the hat?
What kit are you using or if it's not a kit, what are you doing for brackets, etc.?
I don't think a new wheel stud is the answer. If you can't find a rotor that fits on the axleshaft, get the outside of the flange turned down slightly at a machine shop. You don't want to be taking the axle apart just to change a rotor.
Search the threads about all of the multiple disc brake conversions done on 8-lug s/f axles. Obviously somebody knows of a rotor that fits. I can't help you because mine is 6-lug.
Why are there holes in the hat?
What kit are you using or if it's not a kit, what are you doing for brackets, etc.?
I don't think a new wheel stud is the answer. If you can't find a rotor that fits on the axleshaft, get the outside of the flange turned down slightly at a machine shop. You don't want to be taking the axle apart just to change a rotor.
Search the threads about all of the multiple disc brake conversions done on 8-lug s/f axles. Obviously somebody knows of a rotor that fits. I can't help you because mine is 6-lug.
You need different rotors the rotors go over the axel flange like the fronts do
Mikey von
1/2 ton status
kgblazerfive or anyone else, do you what rotors I need? The ones I have right now are napa part # 4885677.
I have searched and searched.
I would love to be able to just bring my axle shafts into the parts store (napa) and find rotors that fit. Too bad my napa keeps nothing in stock and orders everything. So not sure how that would work.
I have PM'd gravel maker last night (ruff stuff). I got my brackets from him. I will call him when I get home in a few.
I have searched and searched.
I would love to be able to just bring my axle shafts into the parts store (napa) and find rotors that fit. Too bad my napa keeps nothing in stock and orders everything. So not sure how that would work.
I have PM'd gravel maker last night (ruff stuff). I got my brackets from him. I will call him when I get home in a few.
Mikey von
1/2 ton status
Well, just spoke with dan at ruffstuff. He said he "heard" but has not confirmed that a '85 ford front 1 ton rotor will work.
I measured my axle flange and it is 8". Not sure if I should try the '85 ford front rotor or the '99 and up chevy rear rotor.
Unfortunatly, my internet is not working at house. which truely blows goats at a time like this.
I measured my axle flange and it is 8". Not sure if I should try the '85 ford front rotor or the '99 and up chevy rear rotor.
Unfortunatly, my internet is not working at house. which truely blows goats at a time like this.
3car
1/2 ton status
So he sold you brackets for a disc swap but can't tell you which rotors work? I'd send the crap back.
Mikey von
1/2 ton status
yupp, seems that way. Sending them back still will not get my truck back together. The $45 brackets are the least of my worries right now.
Just got back from napa, i tried out 85 ford 1 ton fronts and '99 chevy 3/4 ton rears. Neither worked. They were both too small.
Just got back from napa, i tried out 85 ford 1 ton fronts and '99 chevy 3/4 ton rears. Neither worked. They were both too small.
Mikey von
1/2 ton status
this picture is from an ad on ebay for a 14 bolt semifloat swap. Looks like the rotor is on the inside of the axle.
Maybe i do just need longer wheel studs?
Maybe i do just need longer wheel studs?
3car
1/2 ton status
call these folks and ask for the part number for the rotors in their kit.
http://www.tsmmfg.com/2631.htm
Kit includes:
8 Lug 14 Bolt semi floating rear disc brake conversion [FONT=trebuchet ms, Arial, Helvetica]
[/FONT]
kit Includes:Brackets, Spacers, Bolts, and new 12 3/4" SLIP OVER vented Rotors
.
http://www.tsmmfg.com/2631.htm
Kit includes:
8 Lug 14 Bolt semi floating rear disc brake conversion [FONT=trebuchet ms, Arial, Helvetica]
kit Includes:Brackets, Spacers, Bolts, and new 12 3/4" SLIP OVER vented Rotors
.
