What is the largest you can get a healthy German Shepherd?

my dogs a gsd mix and hes about 115lbs
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Really depends. Easter GSDs (sometimes called originals or german variety) are sometimes more compact and American GSDs are bigger body wise. However show bred dogs tend to weigh less than shepherd bred dogs.

I doubt your police force imported dogs…they probably bought from a breeder of mixed or German GSDs. The cost would be too much.

So really if you want a healthy but large GSD I'd go for getting a mixed GSD (basically a dog with a straight back, is light in color, but is large…will likely be mixed lines).
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The breed standard states that no male should be over 85lbs.

Anything higher than that would be considered abnormal. So no that is not realistic and unless the dog in question was a crossbreed or hideously overweight, I doubt it is even possible.
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My German Shepherd puppy's dad is 115 pounds and very healthy. It can be common for the males to get that big. Just look for puppies whose parents are big, then there is a chance the puppies will be big too. Get a male.
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personal experience

A healthy, large-boned male German shepherd can tip the scales at about 110+ pounds, particularly those bred in Germany and other parts of Europe who tend to be larger than American-bred GSDs. In fact, most American bred dogs of any breed tend to be smaller than their European cousins.

There is also a breed of dog that is essentially a giant German shepherd, called a Shiloh Shepherd. Shilohs are not recognized as a breed by the AKC, CKC, or UKC because it is still considered "under construction" as a breed, so to speak. They are however currently being considered for breed recognition by the UKC. There are Shiloh Shepherd breed clubs around the country that you can find if you Google the breed. Shiloh Shepherd females average around 100-120lbs, and males 120-140lbs.

I love German shepherds, and am particularly fond of Shilohs because of their size, amazing temperaments, and generally better hips. I think you're making a great choice for a pet! When you do look into German shepherd breeders in your area, make sure all of the puppies and the parents are hip certified, because hip dysplasia is a big problem in purebred GSDs. Good luck!
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I'd really appreciate help on a question of mine too:
http://answers.yahoo.com/question/index;_ylt=AhHetz8tdZn2VveHIf2NClDsy6IX;_ylv=3?qid=20090727172232AAHAwsK

GSDs were never meant to be huge dogs. I've seen some GSDs that were simply too big. It's too hard on their joints, joints that weren't meant to carry a dog that size. I would definitely focus on working line GSDs, and they might weigh more than 85lbs, but 115lbs is very excessive for the breed. Working line GSDs tend to be bulkier, but they're not as tall or long as show line dogs so they shouldn't weigh *that* much more. My female was 70lbs and she was big for female (show bred, though). My older female was about the same weight but she was shorter, working bred.
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Baa Baa- I have never heard of an Easter German Shepherd.
And both of my dogs were imported to be Police dogs, one from Germany and one is Czech.
All of the dogs my department uses are imported dogs.

Any GSD bred for size alone is one to stay away from. There is nothing wrong with large GSDs, but a good breeder will breed for the breed standard.

My youngest GSD is about 85 lbs and he is large. He is broad, long and tall. He is kept on the lean side though. The oldest, the Czech dog, is only about 75 lbs.

ADD-
I sincerely doubt a Shiloh Shepherd, bred to be large would have better hips.

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my youngest, the largest. Its hard to tell how long and tall he is. and he has filled out since this photo
http://i120.photobucket.com/albums/o178/novarobin/hary.jpg
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owned by 2 GSDs and a Lab

Several of your "expert" answerers prove that they don't understand what a GSD IS. It is NOT a giant, it is not a midget, it is not a cute ball of fuzz.

It is a dog as small as is possible (to allow it be agile and able to out-dodge a stubborn sheep, plus to use as little energy as possible, because energy has to be replaced by food, and food is a cost to the farmer) yet allow it to have the strength to drag a stubborn ram out of the crops and to see-off any 2-legged or 4-legged predator. There is, therefore, a very narrow range of acceptable size, both for height and for weight.

You mentioned the Standard. I hope you weren't referring to the rebel document produced by The KC (UK), or the one invented by the AKC, or the one invented by the CKC. None of those define a GSD - you've only got to look at what judges at all-breeds shows in those countries award placings to to realise that they do NOT result in the breed that has EARNED its ranking as the world's most popular & versatile breed.
The only Standard approved by the WUSV (World Union of GSD Clubs, which has at least one seat & vote for each of up to 77 GSD nations) is stored by the FCI: http://www.fci.be/uploaded_files/166A1991_en.doc
(There is an intention to change the coat-length provisions as of 2010, but we'll see what happens.)
• It describes a first-class GSD.
• For a second-class GSD an allowance of 1 cm in size is made, and a couple of minor faults are accepted.

There is no third-class - if the pooch cannot pass as either BS.Cl.1 (KKl.I in German) or BS.Cl.2 (KKl.II in German) then it is deemed a fail, too untypical to be bred from.
You DON'T produce a great breed, a great cake, or a great anything else, by having sloppy standards!

• So a GSD bit.ch MUST be in the range 54-61 cm (21¼-24 inches) and 22-32 kg (48-71 lbs).
• And a GSD dog MUST be in the range 59-66 cm (23¾-26 inches) and 30-40 kg (66-88 lbs).

Size affects suitability for all sorts of tasks, but of itself doesn't affect health, apart from excess weight putting too much strain on immature joints - which is why the bigger breeds are supposed to grow v-e-r-y slowly and take l-o-n-g-e-r to mature.
However, there is an inverse relationship between size and lifespan (until you get down to teacup sizes where life becomes very fragile), meaning that the bigger the dog the shorter its life expectancy, with Pekingese being the longest-lived breed on average..

The simplest way to ensure that you get a GENUINE GSD is to wait until you find a breeder whose stock you like and who uses ONLY parents that possess Breed Survey Classifications - in most parts of the world a GSD can't even ENTER a Breed Survey until it has a host of important credentials & certificates such as show gradings and hip & elbow certificates and temperament/trainability qualifications.

Two of the e-groups I own have, in their Files section, a "Choosing a GSD.doc" that has several scales to help newbies realise what things are important, what things deleterious.

Join some of the 400+ YahooGroups dedicated to various aspects of living with GSDs, and ask lots of questions there. Each group's Home page tells you which aspects they like to talk about, and how active they are. Most groups allow you to send photos, so that you can show how your pet is developing, or show what you are asking about.

And keep in mind that there will be times you have to CARRY your dog because it is too ill (or dead) to walk. How fit will you be in 12-15 years' time?
Les P, owner of GSD_Friendly: http://pets.groups.yahoo.com/group/GSD_Friendly
"In GSDs" as of 1967
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