CRG Discussion Forum

Camaro Research Group Discussion => Originality => Topic started by: big iron on July 03, 2019, 06:57:49 PM

Title: 67 Lower A Frame Bumper Stop Std. brake vs Disc brake
Post by: big iron on July 03, 2019, 06:57:49 PM

Anyone know the difference in 67 w/o disc. 3939198 and 67 w disc. 3905575 lower bumper stops?
Bob

Title: Re: 67 Lower A Frame Bumper Stop Std. brake vs Disc brake
Post by: Mike S on July 03, 2019, 08:39:30 PM

Hi Bob,
  Are you sure of those numbers? I assume you mean the frame mounted bumper and not the one that mounts in the upper A-arm.
The 67 AIM UPC 3/A2 shows the lower bumper (frame mounted) as P/N 3859194 (drum brakes) and UPC J52/A1 as 3905572 (disc brakes).

Mike

Title: Re: 67 Lower A Frame Bumper Stop Std. brake vs Disc brake
Post by: Petes L48 on July 03, 2019, 08:51:46 PM

Agree the numbers seem off, especially the 3905572.  3939198 superseded the 3859194 shown in the 67 AIM, around 2/69.  Can't say for sure as my car is in resto, but looking at the 3939198, my disc car with 3905572 seemed to be a little taller, slightly curved, and skinnier at the base.  Dimensions for 3939198 are given as 1x1-7/8x2-15/64.  I'll check, but not sure if I have any pics.   

Title: Re: 67 Lower A Frame Bumper Stop Std. brake vs Disc brake
Post by: Mike S on July 03, 2019, 09:05:38 PM

 I may be able to get a picture from my un-restored 67 04B w/disc.
I'll look at the 05B restored too (w/disc).
Mike

Title: Re: 67 Lower A Frame Bumper Stop Std. brake vs Disc brake
Post by: big iron on July 04, 2019, 11:23:00 PM

Sorry for the typo guys, 3905575 should be 3905572.
3939198 and 3905572 are shown as active numbers in my Oct. 69 P&A.
I need a pair of 3905572's and a description would help in the search.
Bob