Need Value of D7 14A, and D7 3T

Price doesn't sound bad for either one. Serial number makes a big difference. 3T23647 up has oil clutch. The 17A has oil clutch standard and is a later machine 1955-61. 17A11879-up is a turbo machine.
It's all about condition but I wouldn't expect to much in that price range.

Here are the pictures from the ad, not the greatest.

Grousers look pretty work down on one of them.

17 A has segmented sprockets which are a nice touch the 17 A is a much better machine than a 3 T to me because they have all the up dates stronger chassis oil clutch hydraulic track adjusters better heads more power the list goes on and on
My only advice to anyone is beware of tracks and all the other bits and pieces of walking, you can chew thru big bucket loads of cash in heart beat fixing walking gear

Paul

Sounds good to me......assuming the tracks are not worn so bad you can't get some hours out of them before they have to be replaced. Need to especially look/measure the bushings for wear in both the forward and reverse sides. If they are thin or already shattering, they're done. Internal bushing and pin wear (track is stretched) can be something you live with but it can make for a real frustrating day if you loose a track because they are real "snaky". If you are able to properly tension them, keeping worn tracks on isn't too hard unless you are working a lot of slopes.

The grousers can be welded up with replacement grouser bar or even rebar cut to length, assuming of course the rest of the track is worth it. Have to look at the big picture.

As the owner says, the hydraulic(grease) track adjuster seals are a common failure. Just some heavy work to get them replaced.

I would want to see and hear the tractors run before I laid down the cash. We bought a D7E a few years ago that was not known to have engine trouble, but it soon developed severe blowby. When we overhauled it, it was obvious the engine had been lightly stuck and broke some rings when it was started up. Sitting unused is not good for one especially in our humid South Eastern climate.

I live near by and have seen this add on graigslist off and on for the last 6 months.

I have too, I thought they were located in Ft Worth, TX?

Not exactly Fort Worth, but in that area.

Be at least a week before I could go see them (Im in Houston), but might be worth the trip.