[AJD] 630 hi-clearance

[John Boehm]

Dean- The wide front ends have two different lengths
on the front spindles, either 17 3/4" overall or 19
3/4" overall. The 19 3/4" spindles were used with the
42" rear wheels and  this would be considered this
correct combination for a high clearance tractor with
a wide front end. So #5 on your attributes should
read: 16" single front wheel or wide front end with 19
3/4" spindles.

John Boehm
Woodland, CA
Visit my web site at http://vintagetractors.com


--- Dean VP <deanvp at att.net> wrote:

> Kreig:
> 
> I own a couple High Clearance Tractors (I think) so
> I can speak about them
> with some experience. Never have owned a High Crop
> version so anything I say
> about them is book learned. 
> 
> Typically a High Clearance 630 or others as well
> will have the following
> attributes:
> 
> 1.) 42" rear tires/rims
> 2.) 42" Rear wheel Cast centers which are dished to
> allow a wider/narrower
> setting.
> 3.) Extra Long rear axles
> 4.) Extra long and heavier rear axle housing
> 5.) 16" single front Wheel
> 
> All of these components have a separate part number
> in the Parts catalog for
> the 630. However, most of the data unique to the
> 620/630 was not recorded at
> the JD factory, when made, so an archive search may
> only yield whether the
> tractor was a Row Crop and whether it had Power
> Steering or not. At least
> that is all got on my 620 which is mostly a High
> clearance tractor. My 620
> has all the attributes of a High clearance except it
> has a wide front end. I
> have been led to believe that a tractor with a WFE
> technically doesn't
> qualify for high clearance status unless it has the
> longer front spindles.
> My understanding is these are about 2" longer. As of
> this date I don't know
> which ones I have on mine. 
> 
> My 1951 A fits all of the above 5 attributes and my
> 1958 520 does as well
> but with two very notable exceptions so it probably
> can't be classified as a
> High Clearance tractor. It has the 3, 4 & 5 items
> but has 36" rear
> wheels/rims and 36" dished cast centers.
> Interestingly I have noticed that
> there really isn't that much difference in height
> due to the profile of the
> 36" tires.
> 
> Most of these tractor configurations are direct
> descendants of the old AN,
> BN, AW and BW designations which are too complex and
> lengthy to go into
> here.
> 
> Now on a High Crop tractor the wide front end will
> have much taller front
> spindles and usually the rear axle drive arrangement
> is designed to set the
> tractor up much higher in the air. A very noticeable
> difference. Much more
> so than the difference between a High Clearance and
> regular tractor. 
> 
> The 520 High Clearance tractor was the featured at
> the National Two Cylinder
> Expo a few years ago. Two Cylinder Magazine did some
> extrapolation of the
> older BN manufacturing numbers and suggested there
> may have been 40 or so
> actual 520 High Clearance versions ever
> manufactured. No JD records exist to
> prove or disprove that number and at the time
> created a bit of a stir in the
> market. 
> 
> There is a lot to discuss here but I'll cut this off
> here and maybe others
> will go into much more depth on the High Crops or
> the earlier A, B & G
> versions.
> 
> Dean A. Van Peursem
> Snohomish, WA 98290
> 
> I'm a walking storeroom of facts..... I've just lost
> the key to the
> storeroom door 
> 
> 
> www.deerelegacy.com
> 
> http://members.cox.net/classicweb/email.htm
> 
> 
> 
> -----Original Message-----
> From:
> antique-johndeere-bounces at lists.antique-tractor.com
>
[mailto:antique-johndeere-bounces at lists.antique-tractor.com]
> On Behalf Of
> kreig
> Sent: Thursday, February 17, 2005 2:14 PM
> To: Antique John Deere mailing list
> Subject: [AJD] 630 hi-clearance
> 
> What is the difference between a hi-clearance and
> hi-crop tractor?  In this 
> a case a JD630.
> 
> Thanks Kreig
> 
> 
> 
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