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Heritage Iron

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Heritage Iron Magazine was founded in 2008 in order to fill a need for those interested in muscle tractors. Heritage Iron features all brands, all makes, and all models of muscle tractors from the 1960’s to mid 1980’s including the equipment used by the tractors. Each issue highlights a featured tractor and presents a detailed account of the tractor, its attributes, its history, and its owner. Other regular features in the magazine are machinery milestones, letters to the editor, equipment and company history, classified ads, auction results, an editor’s page, farm toys, literature and memorabilia.

John Deere 6030: The Big Buck of the New Generation

Oct 27, 2012

If there is one tractor in the New Generation line up that screams “Muscle Tractor”, it’s the 6030. This 1970’s machine left an impression and popularity in the big block series that no other Deere could replicate in the next 40+ years.  (This tractor is the cover tractor for the latest issue of Heritage Iron, click here to learn more.

While Deere’s leap into the 2-wheel drive muscle tractor line started with their 5010 1962, it lacked the muscle needed to pull a load comparable to the weight of the tractor. With the 5020 came moderate improvements but it wasn’t until the introduction of the 6030 that Deere truly had the bugs worked out of its big block series. The 6030 was a whole new tractor and it was one big, bad buck.
JOHNDEERE6030 blog 
6030 Owned by: Doug Fisher - Dunkirk, IN
Photo by: Super T
When the 6030 was introduced in the fall of 1971 as “New for ‘72”, it was available only as a turbocharged model. Weighing in at 18,180 pounds, test showed the 6030 had an output of 175.99 hp at 2100 rpm on the PTO while the drawbar hp was rated at 148.70.
The 6030 appeared to know no limits when clawing its way through the field with a big tool, however, preliminary sales weren’t as brisk as Deere & Company had hoped for. The sales force suspected that all that power might have be a deterrent for some so they decided to pull back on the reins or “neuter” the deer. Deere took the non-turbocharged engine out of the 5020 and offered a non-turbocharged 6030. Thinking this would be good option, the company soon learned they were wrong and only 45 naturally aspirated 6030s were produced and only in 1973.
Although the 6030 was rated at 175 hp, the tractor usually exceeded 200. With all that power, the farmer thought he could just weight it down and pull more…..and pull it did. Unfortunately the axles didn’t appreciate the extra load and a common problem was created when the axle bolts started backing out. This resulted in bearing failure or snapped axles. The late 1976 models came out with 4” (100mm) axles to help with the flexing issues encounter with extra weight.
The 6030 can sometimes be found with a 619 CID engine in it, however, it was never an option from the factory. It could be ordered as a replacement engine after the 6030 production ended. The 619 engine, introduced in the 8630, was same basic engine as the 531, even using the same crankshaft.
When the 6030 came out, Deere was already introducing the Generation II. If you were looking to purchase a new tractor and were standing on the dealer lot looking at two different models, most likely you’re going to pay more attention to the newest. The 6030 had 10-year old New Generation sheet metal and an echo chamber for a cab. Its competition on the lot was a 4630 with a powershift and a modern streamlined cab. With a 404 CID engine, there was a drop in horsepower but the luxury and modern transmission seemed to ease the pain of the sacrifice. 
One can only imagine where the 6030 would have went if it had received the new cab and transmission that its younger brother received. 
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