Re: 5th shock absorber kit per S.B

[adh@xxxxxxxxxxxxxxxxx (Sandwich Maker)]

" From: "Jay" <jciampi@xxxxxxxx>
" 
" Has anyone got the service letters for the 1963-66 Ramblers that mention the 
" vibration problem with some cars. It was a shock that mounted horizontally 
" between the frame and the Right rear shock mount. It supposedly eliminated 
" some weird vibration problem that AMC had. I don't know if it pertained only 
" to the BIG car series (10/50/80) or if it included the 01 series also.

since the rear suspension is pretty different, i'd be surprised if it
applied to the american also.

" I have this vibration from the drivetrain(I believe) at approximately 32-35 
" mph, whether the car is driving ahead or just coasting(out of gear). I know 
" it is NOT the front wheel brgs. as I just installed all new ones due to 
" having a bad one on the left front.
" The driveshaft u-joints have been replaced last year. Could a u-joint be 
" installed 180 degrees out?  I get a low roaring noise above 50 mph  (or so 
" it seems to my ears) I have convertible, so it may be wind noise.

a u-joint is ordinarily a symmetrical cross.  the only common
exception is when the yokes are different sizes.

" I intend to jack the back end up and put it on jack-stands and run it in 
" gear up to where the vibration comes in and see if the driveshaft is out of 
" balance or what else might be wrong.

this can happen if the -yokes- are installed 180 deg out.  usually the
-entire- driveshaft - yokes and all - is balanced, so if a yoke is
flipped...
________________________________________________________________________
Andrew Hay                                  the genius nature
internet rambler                            is to see what all have seen
adh@xxxxxxxxxxxxxxxxx                       and think what none thought