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8.5 or 9.5 ?

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silver hair deere

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Discussion starter · #1 ·
noticed oil on rear of brake drum :Stop: , thought it would be nice to get the parts ahead of time (yea right ) so the parts man said 8.5 or 9.5 :eek:mg: got me !! so is there any way to tell what it is 10 bolt , 12 bolt ,5 lug , 6 lug ? it's a 1989 g.m.c. serria 1/2 ton 5.7 auto with air two wheel drive . 5 bolt rims:lalala:

help

silver hair deere:thanku:
 
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Discussion starter · #3 ·
it's not brake fulid . it's rear end oil .
 
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#4 ·
sometimes there is a sticker inside glove compartment with the info or maybe if you give the GM dealer the VIN# THEY MIGHT BE ABLE TO TELL WHAT ONE IT IS,GOOD LUCK
 
#6 ·
silver hair deere said:
so is there any way to tell what it is 10 bolt , 12 bolt ,5 lug , 6 lug ? it's a 1989 g.m.c. serria 1/2 ton 5.7 auto with air two wheel drive . 5 bolt rims:lalala:

help

silver hair deere:thanku:
Click to expand...

if thats what he asked you, if you have 5 bolt rims, thats the same has 5 lug.
the 10 or 12 bolt is how many bolts hold the differential cover on, on the rearend ( the back cover in the center).
 
#7 ·
Usually there are different sized brake shoes used when the larger ring gear rear axle is used..so you may be able to pin down which one it is by comparing the brake shoe size listings..

For example,my '81 G-10 van had 2 choices of half ton 5 lug rear ends--both used the same 10 bolt axles and housings,but one was rated for more GVW,and that one uses 11"x2-5/32" brakes shoes VS 11" x 2" shoes...might have different axle bearings too,larger shafts?..

Newer GM pickups had several diiferent rear axles ,but as far as I know the 1/2 ton 5 luggers all had the 10 bolt cover and the smaller of the two ring gears--they also had a 6 lug version labeled a "3/4 ton HD" version that had the bigger ring gear and brake shoes..

Many times I run into this,and have no choice but to bring the old part to the store with me to match up,using part numbers off a seal,or comparing brake shoes.etc..It may be well worth calling a dealer's parts dept,they can tell you almost everything that was originally installed in the truck going by the VIN number..(but that wont help much if the rear end was swapped out before you got it!)..
 
#9 ·
I have learned ( from repeated trips to the parts store ) it is best to pull the old parts off and take them with you.
Even if you figure out the brake size, you still might get the wrong seal and have to make yet another trip.
 
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Discussion starter · #10 ·
well counted the bolts lucky it matched my fingers and thumbs (10) so will buy the small 8.5 " seals and will let you know if they were right . when i bought the truck they told me the had put on new brakes and there no leaks , so in the span of 300 miles both sides were coated with oil but they did put on new brakes over leaking seals !!! :sidelaugh god don't you love them ?:Disgus:

silver hair deere:Stop:
 
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#11 ·
When I put the engine in my '98 lumina there was only one front transmission seal. Turned out it was too small. While I was talking to the parts guy about it being the wrong seal I happened to look at the manufacture date of the car. It was 10/97. He looked up '97 and it was the right one. Sometimes you don't know until you take it apart.
 
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#12 ·
silver hair deere said:
well counted the bolts lucky it matched my fingers and thumbs (10) so will buy the small 8.5 " seals and will let you know if they were right . when i bought the truck they told me the had put on new brakes and there no leaks , so in the span of 300 miles both sides were coated with oil but they did put on new brakes over leaking seals !!! :sidelaugh god don't you love them ?:Disgus:

silver hair deere:Stop:
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Yep used cars and trucks .. You are hard pressed to trust the person or company selling them .. stuff like that just don't happen in 300 miles !!

I guess that's one of the reasons I have not bought a used car or truck since 1982. I have enough of my own problems, don't need to "buy" someone else's.. :crybaby:
 
#14 ·
silver hair deere said:
well counted the bolts lucky it matched my fingers and thumbs (10) so will buy the small 8.5 " seals and will let you know if they were right . when i bought the truck they told me the had put on new brakes and there no leaks , so in the span of 300 miles both sides were coated with oil but they did put on new brakes over leaking seals !!! :sidelaugh god don't you love them ?:Disgus:

silver hair deere:Stop:
Click to expand...
You are correct. That truck should have the 8.5" ten bolt rear end.
 
#15 ·
silver hair deere said:
well counted the bolts lucky it matched my fingers and thumbs (10) so will buy the small 8.5 " seals and will let you know if they were right . when i bought the truck they told me the had put on new brakes and there no leaks , so in the span of 300 miles both sides were coated with oil but they did put on new brakes over leaking seals !!! :sidelaugh god don't you love them ?:Disgus:

silver hair deere:Stop:
Click to expand...
That does not surprise me,to hear a shop would replace just the bake shoes,and not the axle seals that caused the dilema!..(many here would do just that,AND say they did change them ,and charge you for it!)..and hope you believe them when they say "they must have been defective--darn china junk parts!"..

At my freinds used car lot,he repairs cars other than those he gets from the auction for sale too--one guy brings in a '94 F-150 4x4 the other day--his front axle was pouring oil out of it from the left outer axle near the U-joint..
"Just got it "fixed" last week at Pep Boys",he says..but when I called to complain,they said "we can do it over,but you'll have to wait at least a week,we're all booked up"..he got disgusted and hung up,then went to see my friend..

So he ends up getting the job,and we pull the axle out--with GREAT difficulty,because it was "glued" into the axle housing with a TON of black RTV silicone ,they probably pumped a whole caulking gun tube full in there!..
We showed the owner what had been done,and he said "OK--stop right there!"..got out his cell phone,called a ramp truck,and they hauled it right back to Pep Boys,all apart!...should be interesting to hear the outcome of THIS one!..:ROF

What gets me is things like this pop up at least weekly at my friends shop,and that is just ONE of hundreds around here!..I cant believe so many other shops screw people mercilessly,and get away with it most of the time!..

His customers trust him to tell them like it is,even if they are clueless as to how a car functions..he has a loyal following now,in fact,many times he turns away bussiness,because he just cant have that many cars at his small lot..good trustworthy mechanics are getting mighty scarce around here now--and forget dealerships,they dont call them "stealerships" for nothing!..I hear many horror stories about the 13 dealers right near my home often!..

Robert
 
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