Re: [Amc-list] Needed AMC American Front Brake Drums for 9" x 2" Brakest

["StefanGB" <StefanGB@xxxxxxxxxxx>]

Hi Tom,

Thank you very much for all the DETAILED information.

I ordered today and hope to have the drums in the nextfew days.

All the Best,
            Stefan

StefanGB@xxxxxxxxxxx

----- Original Message ----- 
From: "Tom Jennings" <tomj@xxxxxxx>
To: "AMC/Rambler owners, drivers and fans." <amc-list@xxxxxxxxxxxx>
Sent: Monday, December 31, 2007 8:15 PM
Subject: Re: [Amc-list] Needed AMC American Front Brake Drums for 9" x 2" 
Brakest


>
>> 1. Just to make sure, the following part numbers are all correct for the
>> FRONT drums on a 1963 Rambler American with 9" X 2" brakes?
>>
>> RAY 2501, 2501R, ACDELCO 18B512, NAPA UP6401106, UP6401217, TS4401105,
>>  TS4401238, UP6401218, UP6401238
>
> Yup.
>
>
>>
>> 2. Rock Auto only lists the 2501/2501R brake drum for the REAR and I need
>> the FRONT. Are they correct for the front?
>
> THe 195.6 cars allegedly got 2" wide, the 232 got 2.5" wide.
>
> The ONE THING that will tell you what width shoes belong on those backing
> plates is the "anchor" top and center above the wheel cylinder. When a 
> shoe
> sits on the backing plate, the arced end of the shoe rests on the anchor.
> If you put 2.5" shoes on a 2" backing plate, the shoe arc end sits at the
> tip of the anchor, instead of centered.
>
> The wheel cylinder is the same; a 15/16" (example) wheel cyl for 2" brakes
> sits lower on the backing plate than one for 2.5". The brake shoe should
> sit squarely on the face of the wheel cyl piston (bendix) or the little
> slotted footsie thing (wagner) should be straight out.
>
>
>> 4. The BD2502 have a concave center to which the front hub mounts and
>> they  do seat all the way. The original drums have a convex center (with
>> respect  to the shape of the drum) and that make up the 1/2 inch
>> difference. The  BD2502's do not make contact with the backing plate,
>> even though they are  1/2" deeper.
>
> The 9" brakes all use the same hub; the concave vs. convex is required for
> that.
>
> 9" brakes I know really well at this point (for what that's worth)! I even
> have some junk parts to measure if you get stuck.
>
> _______________________________________________
> Amc-list mailing list
> Amc-list@xxxxxxxxxxxx
> http://www.amc-list.com/mailman/listinfo/amc-list
>
>
> -- 
> No virus found in this incoming message.
> Checked by AVG Free Edition.
> Version: 7.5.516 / Virus Database: 269.17.13/1205 - Release Date: 
> 12/31/2007 3:32 PM
>
> 

_______________________________________________
Amc-list mailing list
Amc-list@xxxxxxxxxxxx
http://www.amc-list.com/mailman/listinfo/amc-list