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Thomas PTO winch drive onto HJ75

Posted: Mon Mar 20, 2006 6:44 pm
by dogbreath_48
When i brought my car it came with a used thomas PTO winch and drive, 2nd hand but not yet fitted.

It seems like i've got all the pieces, but i'm not entirely sure where/how it all goes. The actual winch should be reasonably easy to mount - it's the drive i'm having trouble with.

Anyway i'll descrive what i've got:

Winch
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Am i correct in thinking the top of the photo is the front? I can't see any other way. Also, is the input shaft (on the left) meant to be on the top or underneath the winch? It seems i can rotate the housing to have the drive either top or bottom.

Drive:
I've got no problem attaching the PTO unit to the transfer case, it's more the shaft i'm puzzled by. One problem i see is that it has "60s" written on it, suggesting it's meant for a 60 series.
I'm also not sure which way it's meant to go.
(A)
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With a uni at the PTO (rear of car), bearing on PTO side, or
(B)
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With a uni at the winch and the bearing on the winch side.

Either way, i have no idea where the bearing should mount. Distance wise, it seems like the only reasonable place is on the inside of the chassis rail - but it looks like the engine mount will be in the way of the shaft.

Also, where is the shaft meant to come through at the front of the car? It seems like i'm going to have to trim the panel underneath the grill at least.


Well hopefully someone has done it all before and can help me out! Also if anyone has some pointers for mounting the winch in a newish style ARB bar , it could be really helpful!

-Stu :)

(P.S. I asked a similar question a while ago and someone named Milo PM'd me offering some help. Unfortunately i lost your number Milo, i didn't mean to be unappreciative of your offer!)

Posted: Mon Mar 20, 2006 7:22 pm
by shorty_f0rty
heres a few tips ive learnt from recently fitting my pto...

in your first pic, the worm drive (the bit on the left) should be under the brace instead of on top, but i notice if you do that then the chain drive will be at the front (all wrong jana)..

the shaft is correct in pick A

And i would expect that the pto shaft goes thru a hole in your front chassis rail... but yours looks all stuffed up so no idea there..

hopefully some of this has helped you out.. check out my members thread (links in my sig) for pics of my PTO install.. although I had a 3 peice shaft..

hope this helps.

Posted: Mon Mar 20, 2006 7:35 pm
by dogbreath_48
shorty_f0rty wrote:heres a few tips ive learnt from recently fitting my pto...

in your first pic, the worm drive (the bit on the left) should be under the brace instead of on top, but i notice if you do that then the chain drive will be at the front (all wrong jana)..
That's good to know. I can take that cog off (what's it doing there anyway!?) and use that side of the input shaft if i flip it.

i'd say the winch has been used as a crane or something. it'd be no good on a vehical in it's current config.

-Stu :)

Posted: Mon Mar 20, 2006 7:44 pm
by skootin
pic a is the correct way to fit the shaft replace the shear pins when u install it n keep a couple of spares int he ashtray. The bearing block will mount to the chassis somwhere 60/75 ser share the same basic frt end measurements so it should be a bolt on fit have some fresh gearoil for the transfer a little more then recommended probably worth checking the seals on the drive as well to save the hassle of it leaking later on they should only be a couple of dollars.

Posted: Mon Mar 20, 2006 7:53 pm
by dogbreath_48
skootin wrote:pic a is the correct way to fit the shaft replace the shear pins when u install it n keep a couple of spares int he ashtray
I assume the shear pin is the pin through the input shaft on the winch? It's currently got a spring pin (hollow) in there. What should i use? I've heard of people drilling out the hole and using a larger diameter, harder pin.

How well do these beasties pull?

-Stu :)

Posted: Mon Mar 20, 2006 8:09 pm
by skootin
They do pull ok but the shear pin is there weak link so not to damage other things like the drive which could be bad. if u want to drive home

Posted: Mon Mar 20, 2006 8:40 pm
by shorty_f0rty
heres a few pics of my pto install..

heres where the shaft goes thru the chassis rail at the front (i have a uni there instead of the chain drive you have), you can also just see the shear pin on the uni there (little copper head):
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heres where the bracket mounts onto the chassis (i have three peice shaft hence two brackets):
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