after 20 years i just noticed i have a 9 bolt , i think?
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Car: 80,81,85, trans am
Engine: 4.9,301turbo,350
Transmission: all auto
Axle/Gears: 308,342,308
after 20 years i just noticed i have a 9 bolt , i think?
i have had this 1985 trans am since 1988. it cost 19,400$ brand new in 1985. (i found the original bill of sale the other day). i was looking under it today and counted the bolts on the diff. 9. why did i not notice this beore? well i am hoping someone can confirm this is a good diff. the tags on it says:
P/N 10032270
RATIO 327
other tag
SPIN RESISTANT
DFF
USE APPROVED LUBE ONLY
SER#6965
the car has not been driven since 1993-94 so its fairly rust free.
P/N 10032270
RATIO 327
other tag
SPIN RESISTANT
DFF
USE APPROVED LUBE ONLY
SER#6965
the car has not been driven since 1993-94 so its fairly rust free.
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Car: 80,81,85, trans am
Engine: 4.9,301turbo,350
Transmission: all auto
Axle/Gears: 308,342,308
Re: after 20 years i just noticed i have a 9 bolt , i think?
just ran the codes from the glove box. GW6 G80 J65
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Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
Re: after 20 years i just noticed i have a 9 bolt , i think?
The rubber plug in the back cover also determines that it's a 9 bolt.
There were no 9 bolts available in 1985 or if there were, there's very little documentation on them.
What's the 10th digit of the VIN code? Can you find a build date. It's possible it was a late 85 build making it a 86. 1985 will have F for the 10th digit. 1986 will be G. The new year starts Sept 1 so a car made after Sept 1 1985 will be classified as a 1986.
There were no 9 bolts available in 1985 or if there were, there's very little documentation on them.
What's the 10th digit of the VIN code? Can you find a build date. It's possible it was a late 85 build making it a 86. 1985 will have F for the 10th digit. 1986 will be G. The new year starts Sept 1 so a car made after Sept 1 1985 will be classified as a 1986.
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Car: 80,81,85, trans am
Engine: 4.9,301turbo,350
Transmission: all auto
Axle/Gears: 308,342,308
Re: after 20 years i just noticed i have a 9 bolt , i think?
the car was sold may 16 1985. the vin is 1G2FW87H5FN229XXX .
here are some more pics of it in my backyard. i parked it in 93 because it was in mint condition and i didnt want anything to happen to it. original paint not one dent. well i lost the garage spot so it sat outside. now it needs full resto.
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the dash is in canadian kilometers
here are some more pics of it in my backyard. i parked it in 93 because it was in mint condition and i didnt want anything to happen to it. original paint not one dent. well i lost the garage spot so it sat outside. now it needs full resto.
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the dash is in canadian kilometers
Last edited by jaygt; 01-14-2009 at 09:56 AM. Reason: Automerged Doublepost
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Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
Re: after 20 years i just noticed i have a 9 bolt , i think?
Vin code confirms it's a 1985. The first digit 1 indicates it was US made so it's considered a export to Canada based on the metric gauges. Somewhere in the RPO codes it will say that.
That's a rare option to get the 9 bolt diff in a 1985.
That's a rare option to get the 9 bolt diff in a 1985.
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#8
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Car: 85&95 Trans am
Engine: 85-LT1 95-LT1
Transmission: 4l60e & 4l60e
Axle/Gears: 3.23 & 3.23
Re: after 20 years i just noticed i have a 9 bolt , i think?
My 85 had a 3.27 9-bolt as well. 10th digit in my vin is a F as well. When the posi started going out I swapped for a ls1 10-bolt.
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Car: 84 Z28,03 GSXR1000,07 RMZ 250
Engine: H.O. L69
Transmission: 5spd
Axle/Gears: 3.73 possie
Re: after 20 years i just noticed i have a 9 bolt , i think?
the dash isnt in kilometers its in miles an hour, if it were a canadian car the kilometers would be the ones on the outside of the miles not the other way around...and kilometers would be the one in bold at the bottom of the speedo
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so i take it all cars before say mid 85 had 8 bolt rear ends?? mines 84 H.O. with a 3.73 possie and rear disk , what should it have for a rear end guys?
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so i take it all cars before say mid 85 had 8 bolt rear ends?? mines 84 H.O. with a 3.73 possie and rear disk , what should it have for a rear end guys?
Last edited by firbster; 01-18-2009 at 09:00 AM. Reason: Automerged Doublepost
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Car: 1987 Black IROC-Z (SOLD)
Re: after 20 years i just noticed i have a 9 bolt , i think?
the dash isnt in kilometers its in miles an hour, if it were a canadian car the kilometers would be the ones on the outside of the miles not the other way around...and kilometers would be the one in bold at the bottom of the speedo
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so i take it all cars before say mid 85 had 8 bolt rear ends?? mines 84 H.O. with a 3.73 possie and rear disk , what should it have for a rear end guys?
----------
so i take it all cars before say mid 85 had 8 bolt rear ends?? mines 84 H.O. with a 3.73 possie and rear disk , what should it have for a rear end guys?
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Car: 89 Formula
Engine: 350
Transmission: TH 700R4
Axle/Gears: 3.27
Re: after 20 years i just noticed i have a 9 bolt , i think?
So we see 140--and it has to be kms
86's saw the 140mph ones come back.
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Car: 84 Z28,03 GSXR1000,07 RMZ 250
Engine: H.O. L69
Transmission: 5spd
Axle/Gears: 3.73 possie
Re: after 20 years i just noticed i have a 9 bolt , i think?
my mistake, i can see now what your talking about. my 1984 has a 140mph speedo but it was changed as i have the stock one..growing up my buddy in highschool had a 83 Z28 and it had a speedo well into the 200+klm i dont remember exactly but i think it went to 240 klm and i know we burried it a few times.. i cant believe they had a 140klm speedo ...these are supposed to be sports cars...LOL... ,
thats why i love this site..learn something new every day
thats why i love this site..learn something new every day
#18
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Car: 80,81,85, trans am
Engine: 4.9,301turbo,350
Transmission: all auto
Axle/Gears: 308,342,308
Re: after 20 years i just noticed i have a 9 bolt , i think?
my understanding was the 140kilometer speedo was government mandated. not sure if this is correct.
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