Looking at a M59. Need info

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M37keppy

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Hi all I’m looking at an M59 to buy and I I’m new to armor. What should be looking out for? I’ve looked at it twice and been in it. The tracks look good and it’s pretty complete. It is missing one engine but I’m familiar with the gmc302 and the hyramatic and have those parts. What do I need to know before trying to move it with heavy equipment? Thanks
 

NDT

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I have restored two of those and even though I really like the 302, I do not think the M59 is a good track. The 302s spend all their time at 3400 rpm and struggle to move the apc. Synchronization of the two power packs is a nightmare. To move one unpowered all you have to do is release the steering levers from lock position.
 

Austringer

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There is a pretty nice one near Nashville TN that can be picked up for less than 15k, pretty complete. If you are interested, PM me and I'll send you the info.
Jason.
 

wilber

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Do you know of anyone that has repowered an M59? It looks like a good candidate for a couple of 5.9 cummins diesels with automatic transmissions. How synchronized do the powerpacks have to be? Does the differential smooth any of the power difference out? Thanks in advance.
 

kubotaman

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Do you know of anyone that has repowered an M59? It looks like a good candidate for a couple of 5.9 cummins diesels with automatic transmissions. How synchronized do the powerpacks have to be? Does the differential smooth any of the power difference out? Thanks in advance.
Perhaps you could be fine with using just one 5.9 tuned for power. Keep it simple.
 

wilber

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That is an interesting thought. I haven't had any luck finding an explanation of the twin engine setup and how the power flows to the tracks. It looks like two right had drives that send power to the front differential and then I'm assuming shafts that send power back out to the drive sprockets? I just bought one but it hasn't been delivered. I'll know better when I can actually look at the drive train.
 

NDT

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Wilber that is correct. The center steering differential locks the two inputs together. I doubt the right angle drives can handle much more than 100 hp that the 302s put out. So using one 5.9 would be iffy. Two probably ok. This 43,000 lb machine needs way more power than the 302s can deliver.
 

wilber

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Wilber that is correct. The center steering differential locks the two inputs together. I doubt the right angle drives can handle much more than 100 hp that the 302s put out. So using one 5.9 would be iffy. Two probably ok. This 43,000 lb machine needs way more power than the 302s can deliver.
Thanks NDT. I just bought one but have not taken delivery yet. I have a feeling I'm going to be asking a lot of questions...
 

big camo truck

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Hi all I’m looking at an M59 to buy and I I’m new to armor. What should be looking out for? I’ve looked at it twice and been in it. The tracks look good and it’s pretty complete. It is missing one engine but I’m familiar with the gmc302 and the hyramatic and have those parts. What do I need to know before trying to move it with heavy equipment? Thanks
I know where two freshly rebuilt M59 engines and transmissions are
 
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