1BadK-30
1/2 ton status
i know its a shot in the dark but does anyone know? i search and found a bit that it could be 3.08's and 3.73.
CK5
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82 c10 stock gears?
- Thread starter 1BadK-30
- Start date
One '82 K-10 I have has 2.73........yes.....special ordered!!! It would not back up a steep hill with the stock 305, unless I put it 4L...........wow, what was someone thinkin'?
1BadK-30
1/2 ton status
incase you guys want to know it had a 305 motor and 700r4 stock
Last edited:
1BadK-30
1/2 ton status
ttt anyone? i dont have the rpo stickers
K5MONSTERCHEV
1/2 ton status
Just pop the cover and check. 2.73, 3.08 or 3.42
1BadK-30
1/2 ton status
i would but i have no idea what im doing 
K5MONSTERCHEV
1/2 ton status
OK its easy.
jack it up, get a drain pan.
undo the 10 13 mil bolts around the cover
Get a scraper and hammer, pop the cover off
count the teeth on the ring gear and the teeth on the pinion
divide ring by pinion= ratio
clean the gasket off, silicone, bolt the cover back on and filler back up
You could guesstimate by seeing how many times the pinion/driveshaft turns for one revolution of the tire.
jack it up, get a drain pan.
undo the 10 13 mil bolts around the cover
Get a scraper and hammer, pop the cover off
count the teeth on the ring gear and the teeth on the pinion
divide ring by pinion= ratio
clean the gasket off, silicone, bolt the cover back on and filler back up
You could guesstimate by seeing how many times the pinion/driveshaft turns for one revolution of the tire.
1BadK-30
1/2 ton status
id rahter just jack it up and do the estimate calc to tell you the truth 
Good luck getting 2.73 and 3.08 differentiated that way.
1BadK-30
1/2 ton status
yes i know i wont get the exact gear ratio correct, but frankly i would rather not mess with it.
this thread is going nowhere. was a silly question to ask when there is common ratios it could be.
this thread is going nowhere. was a silly question to ask when there is common ratios it could be.
There's nothing wrong with asking it, yes it could be one of 4 or so ratios STOCK, but could be any number if ever replaced, which is entirely possible.
Most (like myself) recommend pulling the cover because not only will you know exactly what's in there (gears, as well as limited slip, etc) but you will then know it's general condition, and you know you have the correct amount and type of fluid to make sure it continues to work the way it should.
Most (like myself) recommend pulling the cover because not only will you know exactly what's in there (gears, as well as limited slip, etc) but you will then know it's general condition, and you know you have the correct amount and type of fluid to make sure it continues to work the way it should.
