which clutch disc?
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Senior User
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which clutch disc?
The throw out bearing in my 86 f250 has siezed. It sports a 460 and a t18. I'm going to replace the clutch and and all onther parts necessary, but there is a 10",11" and a 12" clutch assembly. How do I find out which one I need with the transmission still on? I need to buy a new jack when i go to town, barrowed two both broken! 
Last edited by rockpile; Jul 5, 2010 at 12:03 PM. Reason: missed a sentance
Cargo Master
Joined: Oct 2005
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From: NJ
I'd wager it's an 11" clutch. As far as I know that's what most 460 trucks came with. 12" wasn't too common. I put a stock 11" clutch on my truck and it has slipped a couple times under heavy load. Will definitely be going with a better clutch disk and pressure plate next time around. If you use yours as a truck you should consider upgrading yours too.
Fleet Mechanic
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From: patricia ab canada
his 86 has the hydraulic clutch,he probably wouldn't notice a stronger pressure plate. my 86 is like his 460 t18,and my 81 302 srod is alot harder to depress the clutch than my 86.the difference is night and day.
Cargo Master
Joined: Oct 2005
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From: NJ
A mechanical linkage will typically take more effort than hydraulic. Hydraulic is not magic, there is no power assist on your clutch master cylinder. Put more weight on the end and you need to push harder. We're not talking rocket science here. Doing more work on one end requires more input on the other end.
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Fleet Mechanic
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From: patricia ab canada
Do you think I'm an idiot,power assist give me a break. i'v been turnig wrenchs for 29 years.speaking from experiance,Been there done that I noticed very little difference.
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got everything ready. t- case, drive lines, slave cylinder, shifter of course all out. supporting motor with jack stands, wish I had air tools. how heavy is the trans? can I pull it with a floor jack and the cross member still bolted in? should I pull it from the bell housing? Ive got about 140k on the motor should I do the rear main seal while the transmissions out?
Last edited by rockpile; Jul 6, 2010 at 04:13 PM. Reason: missed some words so it didnt make sence
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Trans + cross member I'd estimate at something around 85-100 lbs.
Yes, I would separate it from the bell housing, most definitely (although I've never tried it any
other way).
Is it 4WD? You'd still need to remove the oil pan, that can be pretty difficult/impossible without
lifting the engine cuz of the cross member on 4WD vehicles
Yes, I would separate it from the bell housing, most definitely (although I've never tried it any
other way).
Is it 4WD? You'd still need to remove the oil pan, that can be pretty difficult/impossible without
lifting the engine cuz of the cross member on 4WD vehicles
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Any suggestions for a heavy duty clutch/pressure plate kit supplier? Also, my machine shop guy says he can grind an old flywheel so I won't have to worry about balancing issues - but is this known to be a problem with ford trucks? I looked at perfection but haven't really looked around otherwise. (this old truck belonged to a brick layer who put a dump kit in it to haul sand and bricks - I'd like to be able to haul some gravel without worrying about it, the clutch that is...)
Cargo Master
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From: NJ
I recommend avoiding perfection, they are cheap foreign parts. Maybe okay for light use but leave something to be desired when used as a truck. I have a perfection brqand behind my 460, made the mistake of taking what the parts store had since I was in a hurry. It has slipped on me twice, first was on the boat ramp and another time when I was spinning all four in 4th gear wide open across a big open field of snow. Clutch has also become very grabby, started long after the two times it briefly slipped.
Not sure what the best bang for the buck is, or best brand, but I've used Centerforce clutches and pressure plates in several high HP cars and never had a problem with them. My advise is not to skimp on the clutch disk or pressure plate. I foresee doing mine within the next year and it's only a bit over a year old. Cheaping out the first time is not cheaper.
Not sure what the best bang for the buck is, or best brand, but I've used Centerforce clutches and pressure plates in several high HP cars and never had a problem with them. My advise is not to skimp on the clutch disk or pressure plate. I foresee doing mine within the next year and it's only a bit over a year old. Cheaping out the first time is not cheaper.
