Rocket Ron
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« on: July 19, 2008, 18:54:20 pm » |
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Anyone know the right amount to take off late drums to fit early axles
I've done two drums in a month so would like to know the correct amount to take off. Getting a little tired of ripping the splines out of the middle of the drums leaving me with no drive as the diff is spinning the wrecked drum leaving me with no drive.
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13.12 @ 101.84
Grooving out on life
You can't polish a turd but you can roll it in glitter
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colin jardine
Jr. Member
 
Posts: 61
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« Reply #1 on: July 19, 2008, 19:47:05 pm » |
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I'm not sure about your set up Ron, I'm running short axles and late type 3 drums.
I trial fitted the drums, fitted the castle nut and tightened it, removed the nut then measured the distance from the drum hub where the nut tightens onto, to the nearest hole in the axle where the split pin passes through. I then added onto that measurement the thickness from the back of the nut upto the slot for the split pin. I can't remember the amount i removed, but 5mm sticks in my mind.
If your worried about removing too much material from the drum, you could perhaps remove a little from the nut also, although some may not recommend that!
cheers
colin
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Rocket Ron
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« Reply #2 on: July 19, 2008, 21:58:12 pm » |
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It seems funny that I removed the same amount from each side but only get the problem one side   ? I'm running late porsche pattern after market drums on early short axles tomorrow I'm going to remove both sides and measure what i've got on both sides. I'm also using Vw ie german nuts now as I thought the first drum problem was caused by crap £3 castle nuts Thanks for your input Colin
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13.12 @ 101.84
Grooving out on life
You can't polish a turd but you can roll it in glitter
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colin jardine
Jr. Member
 
Posts: 61
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« Reply #3 on: July 20, 2008, 14:51:56 pm » |
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Yeah that's a bit strange. Are your axle spline's in good condition?
I'll measure mine tomorrow and get back to you.
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Shubee2 (DSK)
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« Reply #4 on: July 20, 2008, 16:13:34 pm » |
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Anyone know the right amount to take off late drums to fit early axles
I've done two drums in a month so would like to know the correct amount to take off. Getting a little tired of ripping the splines out of the middle of the drums leaving me with no drive as the diff is spinning the wrecked drum leaving me with no drive.
I think its 5/8 of an inch its the same thickness as the thick axle spacer
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Der Selten Kafers VW Club. Founding Member Est: 1976
58 Ragtop Old School Cal Look 66 Cal Look Drag Car 67 Resto Cal Look 67 Chevy II Nova L79 02 Camaro Vert! 04 Corvette Vert! 04 Colorado Pickup
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John Rayburn
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« Reply #5 on: July 20, 2008, 18:22:12 pm » |
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Check your axle bearing on the side that keeps grenading, that could be your problem.
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I also park at Nick's.
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Rocket Ron
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« Reply #6 on: July 21, 2008, 07:52:35 am » |
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Check your axle bearing on the side that keeps grenading, that could be your problem.
john I'll change the bearing as well when i sort out a new drum, worth a try thank for the info shubee colin brand new race axles and thanks
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13.12 @ 101.84
Grooving out on life
You can't polish a turd but you can roll it in glitter
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benssp
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« Reply #7 on: July 21, 2008, 09:04:18 am » |
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I'll get the thickness of my brake disc spacer measured up in a bit, i've got them on my rear discs 
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Brian Silva
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« Reply #8 on: July 21, 2008, 17:30:44 pm » |
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Had to do the same thing on my car with type 3 drums. Ended up taking 5/16 off of the snout of the drum to get it to fit properly.
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colin jardine
Jr. Member
 
Posts: 61
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« Reply #9 on: July 23, 2008, 23:28:07 pm » |
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I'm not sure if your any further on Ron, but here are my measurements....
Thickness of drum spline: 50.95mm Thickness of nut, from rear of nut to slot for split pin: 9.1mm
I measured the axle spline from the bearing carrier to the end of the splines and this was 43.5mm.
Hope this helps!!
cheers
colin
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Rocket Ron
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« Reply #10 on: July 24, 2008, 10:46:04 am » |
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Cheers Colin
The story so far
I've taken off the drums on both sides and measured up things, the new race axles I've just put in the last month are ever so slightly longer. After ringing round some friends running race axles I’ve been told this is quite common.
I'm having the drum machined down to the same dimensions as the other side that hasn’t caused me any trouble and having 2mm spacers made up. Hopefully this will keep things nice and tight and the same on both sides.
I will pass on your measurements to “boom boom” who is machining everything up for me.
Thanks again
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13.12 @ 101.84
Grooving out on life
You can't polish a turd but you can roll it in glitter
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leec
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« Reply #11 on: July 25, 2008, 12:23:17 pm » |
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Thats interesting Ron,
I better check my drums if race axles are a bit longer then....
Lee
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