someone suggested I ask this here instead of the truck section...pasting:

my brother called me this morning from Colorado(I'm in Ohio), he has a old 460 dumptruck that threw a rod a couple years ago, just put a good running 360 FE with bellhousing/fork(no clutch) someone gave him - he got a FE clutch/pressure plate, fabbed a new mechanical clutch linkage, to replace the hydraulic one, got the mounts/everything in- said it was a bear- but the clutch wont disengage...he wont touch a computer, so suggesting he get on some forums was to no avail- thought I'd ask in his place

he said he can see the pressure plate back off the friction surface when the clutch it pushed, but its still driving/wont disengage, so I told him I think he's just got the wrong clutch disk/flywheel clearance, but guessing a hodgepodge of parts over the phone is not very effective
He did say the pressure plate he bought was the diaphragm type with the 'fingers' all the way around- I'd always thought most truck applications were the 3 armed 'long' or 'borg-beck' style pressure plates?


Anyways, wondered if anyone out there has done a similar swap and if they might have a part number or even just application year/model that might have came with a mechanical linkage/360 so he can see what the right clutch should be for that flywheel... sorry- know its not much info, but figured there should only be one or two truck applications for a manual transmission/360 over the years...also, a general FE question- did the 352/360/361/390/427/428 use different flywheels? I would assume so, just wondered if any others might share the same diameter/balance in searching for alternate clutch availability...

thanks in advance for any info
Tim

* also shoulda mentioned I asked if he might have flipped the disc, he said it only fit the pressure plate one way (?)

 

I have had clutchs "stick" before if the vehicle set up awhile, specifically tractors that set 3-4 months in the off season. I doubt that is his problem but it is a possibility

 

just talked to him again, he got it apart no problems- but the disc hub is about 1/8 inch taller that the original disc(he DID have the old clutch assembly).

so tomorrow he'll be off to find a disc that matches the original- still not sure what model truck the 360 came from, so might just need to have the parts store folks look at a few... those guys hate that

 

we've got a lot of Fanuc robots at work, the servos have a spring-set magnetic disc brake, they tend to stick solid too if they sit for a few months- amazing how much torque they can hold by just sticking to one side...

i helped break a old clutch on a tractor loose many years ago, think I was still in highschool... an old international harvester h or m- the trike wheeled one- we tugged that thing back and forth a bunch, wouldnt bust loose- ended up push starting it in gear and driving around a while- eventually vibration/torque shook it loose...seemed impossible that a little rust could hold so tight... never forget that day, raking hay, dropped the front wheels into a groundhog hole, nearly flipped the thing...popped straight up in the air, bent the hitch/rake, muffler flew off right over my head- those skinny steering wheels are hard to hold onto when hangin on for your life

Anyways...

 

We did same, start them in lo and drive around, even use to ease them up to a pine tree (with clutch pedal mashed) and break it loose that way, one time one started to climb the tree, scary. Wound up finding an inspection hole that exposed the front of the flywheel, a light tap with a punch was all it took to knock the disc loose from the flywheel.