Tom, he might be able to see the drum size by looking thru the wheel.
I can on my 98. Just a thought.
Rascal
On Tue, May 11, 2010 at 1:27 AM, TerribleTom <silvereightynine@aol.com> wrote:
>
> al klabunde wrote:
>>
>> Have a 98 sport 5.2 4x4 and want to replace rear drums.They offer 9 or 10 inch drums.
>> Was 9 maybe for 2 wheel 6 cylinder or what was the determining factor? Don't want to pull
>> wheel to measure till I have parts to do the job. Thanks for any info guys-Al
>
> Parts counter guys hate to hear "I don't wanna pull it apart until I have the parts for it can't you look it up in the computer??", when the only way to find out what you have is to look at it :) (or perhaps call a dealer with the VIN)
>
> Other things are "can't you look up what size bolt that is??" heh
>
> Some times with auto parts the only way to know, is to look.
>
> Chevy Silverados come with two sizes of rear disc brakes. The difference in diameter is only fractions of an inch, but are not interchangeable. A GM tech who works at my local Chevy Stealership informed me that the determining factor as to why one truck would come with a certain size rear rotor vs the other size, was due to suppler issues. Seems Chevy had to farm out the production to another supplier in order to meet demand requirements. The result was two vendors sending brakes to the assembly lines. Had nothing to do with GVWR or 4x4 or 4x2 drive train.
>
> Disclaimer: this is what I was told by someone at a dealership - I seem to recall we had someone who was a GM employee on the list at one time, so if I've been informed incorrectly, feel free to enlighten me.
>
> The point of that story was to illustrate that you can't try and figure out certain things based on how the truck was built.
>
> Over the years, GM C/K series trucks built from 88-00 came with tail lights that used either 1157/1156 bayonet base bulbs - or 3157/3056 wedge base bulbs. Parts listings have both - no way to determine what the truck has... GM phased out the 1157/1156 style circuit boards in those trucks after a while... to use the wedge bulbs which are more the standard these days... so they could have had trucks rolling off the lines one after another with a mix of both styles...
>
>
> Mid year production shifts make for a nightmare sometimes as well... something titles 1996 might have parts on it listed for a 1997 or 1995... depending on what build date it has... Its not cut and dry dealings!
>
> Ok I'm done...
>
> --TerribleTom
>
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