RE: [Chrysler300] Brakes / blue sky

["'Ron Waters' ronbo97@xxxxxxxxxxx [Chrysler300]" <Chrysler300-noreply@xxxxxxxxxxxxxxx>]

Hi John -

I tend to trust the parts book about 98% of the time. Yes, there are
occasional mistakes. But since my 1955-58 parts book is dated May 1964, I
assume that most of the publication issues were corrected by then.

Three platform brakes ? There is a whole MTSC booklet on the topic:
http://www.mymopar.com/downloads/mtsc/138.pdf  

Ron 

-----Original Message-----
From: John Grady [mailto:jkg@xxxxxxxxxxxxxxxxx] 
Sent: Wednesday, July 08, 2020 2:13 PM
To: Ron Waters
Cc: chrysler300@xxxxxxxxxxxxxxx
Subject: Re: [Chrysler300] Brakes / blue sky

Maybe not  true Ron . Been there. Had 58 D both ways , look up parts for 58
,check numbers vs 59 or 57  you often got wrong one . Much of the literature
in parts books all messed up about D . 59 has the later upper arms too , I
think changed with brakes . You are right though all 59 are later stuff.
Note two part numbers for upper arm bushings 58 . Late 58 , up , is
Distinguished by increasing the thickness of the backing plate , bigger
control arm bushings , I think front end adjusting methods changed too (
cams vs shims) ) backing plate thickness step  changed the wheel cylinder
step  .   When you swap a  frame you learn all this the hard way . Not
familiar with term "three platform " at all . Maybe another change . But
structural change was ( despite erratic  stories about when , or if all at
once , or just 300 )  in 58 . 57 had problems , to put it mildly .  Noises
failing to hold adjustments , locking if left sitting , etc not all  those
fixed by upgrade either.     
Whatever , one D had the later parts factory . Other did not . I got so
confused by this at the time , and - I am not being strident about it .. as
ten years ago , - that I chased down a period Moog catalog , also even more
confusing . Even corresponded with them by email . I won't even go into ball
joints , must be 4-5 of them in this period. But catalog gives you no
dimensions , you find out when you get part . I vaguely remember Imperial
used an upgraded ball joint sometimes listed as if fitting all 300's .
Sometimes the numbers are same size but mean different quality line , rubber
etc . Very confusing . Finally took to 300F parts all fit ok. 
Do consider this as information from on the ground . And do not believe all
you read on 300D front end orbrake parts. It depends. 
Main question was spindles , anyway . Sorry for digression. ..
John     

Sent from my iPhone not by choice 

> On 8 Jul 2020, at 12:34 pm, Ron Waters <ronbo97@xxxxxxxxxxx> wrote:
> 
> John -
> 
> The changeover to three platform brakes happened Jan 1959. Wheel cyls, 
> support and backing plates, etc. Nothing changed from 57 thru early 59.
> Spindles ? Not sure how long they used the same ones. Parts book would 
> have the answer.
> 
> Ron
> 
> -----Original Message-----
> From: Chrysler300@xxxxxxxxxxxxxxx [mailto:Chrysler300@xxxxxxxxxxxxxxx] 
> On Behalf Of John Grady jkg@xxxxxxxxxxxxxxxxx [Chrysler300]
> Sent: Wednesday, July 08, 2020 12:18 PM
> To: chrysler300@xxxxxxxxxxxxxxx
> Subject: [Chrysler300] Brakes / blue sky
> 
> Hi all ,
> Anyone know if 60-62 front spindles are essentially the same ? I 
> believe stock brakes 59- 62 interchange ,62  last year of the two 
> leading shoes , says spindles probably do too . In fact spindles may 
> carry later into 60's .., if the later 63 up Bendix style drums Bolt 
> on to similar spindle interface ) --But  That is not the issue here...
> I know 60 parts fits late 58 /59 too, ? may fit  57 if used With 57 / 
> early
> 58 upper control arms ( has smaller upper frame bushings)  . I used 59 
> de Soto Lwb frame under a 57 , used 60 F brakes / front end parts on 
> that frame as I had them .
> Late 58 up brakes way better structurally than 57 , upgraded mid 58 . 
> Why wheel cylinders differ .
> 
> Looking  at ? larger front discs than current upgrade  tech allows 
> -limited due to our small wheels ( 15,14) .
> I read in an SAE article that 16 " wheels are the best engineering 
> trade looking ahead on tire roadworthyness ,handling etc. - same 
> rolling OD, with smaller sidewall .  So  tires available in 16" will 
> be many . coincidentally I converted a few to that size over getting 
> really good top end Michelin tires .
> In the future I think tire companies will look at 14 and 15 the way 
> our generation looks at 6" model A tires on wire wheels .
> Would love really good brakes , - you do not have to worry about, like 
> a modern Jeep GC or corvette . Fit in 16... ?? Just looking at this 
> right now ...
> 
> Brake guy I am working with had worked on 62 300 ( and up ) ok , but 
> not before then . He has all 62 data , I think the same spindle goes 
> back to at least 1960 .
> FYI , -
> John
> ... 
> " Brakes to match 150 mph"
> 
> Sent from my iPhone not by choice
> 
> ------------------------------------
> Posted by: John Grady <jkg@xxxxxxxxxxxxxxxxx>
> ------------------------------------
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> 



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Posted by: "Ron Waters" <ronbo97@xxxxxxxxxxx>
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