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That is right, two lenghts of axles in 59-63 with 8 3/4 rear ends.
My experience:
I have a 64 Dodge Polara that had a bad axle(treads at end were all stripped). So I tried to swap that axle with a 1960 spare axle from an open differential. Sure enough it was aprox . 1/8 longer, I did not notice before installing it but with no shims installed
there was a huge play side to side. I removed it and measured both axles and found out that way that the 60 axle was longer. So then I tried an axle from a 1961 sure grip (another spare I had on hand fortunatly) and it was the correct lenght for the 64 rear
end. I installed it with the original shim pack from that 64 Dodge and side to side clearance is correct.
I do not know the effects of the pin in center of sure grips. I know it has to be present, if pin not there axle will move in some??? Screw up side to side clearance???
Jean-Yves.
From: Chrysler300@xxxxxxxxxxxxxxx <Chrysler300@xxxxxxxxxxxxxxx> on behalf of charlies@xxxxxxxxxxxx [Chrysler300] <Chrysler300-noreply@xxxxxxxxxxxxxxx>
Sent: December 11, 2020 2:39 PM To: c300@xxxxxxx <c300@xxxxxxx> Cc: 'Rick King' <rickking952@xxxxxxxxx>; chrysler300@xxxxxxxxxxxxxxx <chrysler300@xxxxxxxxxxxxxxx> Subject: Re: [Chrysler300] 64 K Rear Diff Hi All, In regards to axle length, be advised of the following, taken from Auto Hobby Digest. See https://www.bigblockdart.com/techpages/875axle.shtml There was a difference in thrust blocks prior to 1964 that make center section interchange, as well as axle interchange problematic. The thrust block, or "axle shaft thrust spacer", it thr block that both left and right axles butt up against inside the center of the differential. Prior to 1964, all open differentials used a thrust block was approximately 1/8" to 1/4" thicker than units made after 1964. The Sure Grip thrust block prior to 1964, however, was indentical to all 1964 and later Sure Grips and open differentials. In 1964, the thrust block width was changed to match the Sure Grip thrust block width. This difference in thrust blocks between Sure Grip differentials and open differentials required that two different axles be produced for each 8-3/4" housing manufactured. This is true of all 1959-1963 cars with 8-3/4"s. A 1964 and later differential, or any Sure Grip differential, cannot be used with 1959-1963 rearends and axles originally equipped with an open differential. The original axles must be machined or original Sure Grip length axles must be used. Section 3 contains housing and axle sizes and part numbers for these early 8-3/4" rearends. Charlie in Ottawa
On 2020-12-10 3:16 pm, 'Rich Barber' c300@xxxxxxx [Chrysler300] wrote:
__._,_.___ Posted by: Jean-Yves Chouinard <jymopar@xxxxxxxxxxx> To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx To unsubscribe from this group, send an email to bob@xxxxxxxxxxxxx or go to https://groups.yahoo.com/neo/groups/all/manage/edit For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/search.htm#querylang __,_._,___ |
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