rear end gear code

[73chgrSE]

Anyone know the codes for the rear end gears of 3rd gens?

[mikepmcs]

you can poke around here, but when i did the google for 1973 broadcast decoder this link under the ad word sais no decoder available for 73 charger yet.

give it a look anyways. i'll keep looking.

you got a fender tag and a build sheet??

http://www.stockmopar.com/reference/
v/r
Mike

[69CoronetRT]

Anyone know the codes for the rear end gears of 3rd gens?

71-72 Lynch Road built cars carry a three digit axle assembly code at the end of the top line. This code changes from year to year and tells you what rear, gears, SG or not and brake set up was on the axle.

73-74 Lynch Road cars have what looks like a six digit number at the end of the top line. The first three digits of this series is the axle assembly code.

St. Louis built cars will indicate the Axle package on the tag such as A31, A33, A34 or A36 if the car came equipped with one. If there's nothing on the tag, you can go to the BS, if one is present, and find out the info.

The same info is available on the BS in two different places. One area shows the ratio and SG or not and the three digit axle assembly is listed elsewhere.

Do you have a specific code you want to check?

[73chgrSE]

I do have the fender tag. Where on it will I find the code for the rear gear? Thanks.

[69CoronetRT]

I do have the fender tag. Where on it will I find the code for the rear gear? Thanks.

71-72 Lynch Road built cars carry a three digit axle assembly code at the end of the top line.

73-74 Lynch Road cars have what looks like a six digit number at the end of the top line. The first three digits of this series is the axle assembly code.

St. Louis built cars will indicate the Axle package on the tag such as A31, A33, A34 or A36 if the car came equipped with one. This code will be on the third line from the bottom.

[69CoronetRT]

73/74

[69CoronetRT]

I don't have a Charger specific tag so I used a 71 Road Runner built in STL for this example.

[694spdRT]

Hey 69CoronetRT

Would the axle code on a '74 lynch road car of 189 be a 3.23 open 8 3/4?

Thanks

[69CoronetRT]

Hey 69CoronetRT

Would the axle code on a '74 lynch road car of 189 be a 3.23 open 8 3/4?

Thanks

Yes.

[694spdRT]

Thanks 

Do you know if there was a 3.55 gearset available in '74?

[69CoronetRT]

Thanks 

Do you know if there was a 3.55 gearset available in '74?

Yes it was an option for B bodies. I dont know for sure if was available in the Charger but I would think you could order it.

[73chgrSE]

Mine was built at lynch rd. and the first 3 #'s in that group of 6 @ top right is "987". What does that translate to rear gear?

Thanks

[69CoronetRT]

Mine was built at lynch rd. and the first 3 #'s in that group of 6 @ top right is "987". What does that translate to rear gear?

Thanks

I don't have that one but maybe some one else can help. Here's a bump.

Does the car have an original 8.75 or was it something different? If you have the BS the gears, SG or not and the rear end housing is listed too.

[73chgrSE]

I'm 99% sure everything's original back there and it's a 8 3/4. Although no build sheet, just fender tag. I've learned alot from the FT except the rear gear.

[73chgrSE]

the top right is

057   987055

the 055 makes me think it's a 3.55

I cant find much info on these lynch road cars.

[694spdRT]

Do you just want to know what gear ratio you have? If it is original like you say then can't you just check it?

[69CoronetRT]

the top right is

057   987055

the 055 makes me think it's a 3.55

I cant find much info on these lynch road cars.

73-74 Lynch Road cars have what looks like a six digit number at the end of the top line. The first three digits of this series is the axle assembly code.

The last three digits are the numbers for the tranny assembly. The numbers 055 indicate the automatic tranny behind a 400.

As stated above, if you think they are the original gears you can lift the car or remove the carrier to check the date code and ratio.

The 3.55 axle would code 992.