Here's how little I know...

Mark Barnes · Mar 27, 2020

Bought a Belvedere ll sight unseen. Haven't gotten my hands on it yet. Has an original 273/904 in it.
First question is, did these cars come with 8-3/4 rear ends, or something smaller?
Second question- does the 8-3/4 reference just the ring gear size, and if so, are the diff./axle housings the same for all gear sizes? I remember back in the day my buddies would pull the axles and remove the entire frontloader. The "pig", as they used to call it. Guess I should have paid more attention.....1

VANDAN · Mar 27, 2020

Your car should have an 8-3/4 rear end, if it is original to the car, '67 Belvedere ? You will be able to change out the "pig" to another gear ratio, if looking to. The axle housings themselves, came in different widths, to accommodate the particular year & model they were installed in, at the Factory...

beanhead · Mar 27, 2020

Well I can't say for sure if your model would have had an 8-3/4 as standard equipment, but yessir that is the ring gear size. 8-3/4 housings and axle splines are all the same; except the length(or width?) varied depending on car model. 3rd member/carrier/(pig/chunk/pumpkin lol)came in 3 different series, identified by the last 3 digits of the big number cast into the side of it. The 741(low-HP/torque applications) used the smaller yoke and pinion, 742 and 489 were the bigger (and more desirable) series. 742 is generally from 1968-down while the 489 is 1969-up, though there was some overlap there. Generally you use parts for your specific series of carrier, although any carrier can be put into any housing. Just have to match the rear U-joint with the pinion yoke size.

kramer · Mar 27, 2020

Pretty much all v8 B bodies 68 and older had the 8 3/4 except for the 440 and Hemi 4 speed cars with the Dana 60's. The 8 3/4 does refer to the ring gear size. I believe most of the 8 3/4 center sections were interchangable all the way up to 1974, the last year of the axle.

Demonic · Mar 27, 2020

I've seen them with baby rears - the 7 1/4. Hopefully you have the 8 3/4.

Darter6 · Mar 27, 2020

Had a 69 and a 70 that came with a 8 1/4 '' too. But I'm pretty sure that a 67 would have a 8 3/4''. :xscuseless:

That way we can tell for sure.By the way Hi Mark ! Thanks for joining up.

rolling_Thunder · Mar 27, 2020

According to the dealership date book (from Hamtrack Historical) 6 cylinders got the 7 1/4, all V-8s for the 8 3/4 except the manual trans Hemi and 440 cars with the Dana

YY1 · Mar 27, 2020

nearly all 1966 B body cars except 6 cyl that I've seen came with an 8 3/4

for 67, I've seen some 273 and 318 cars come with a 7 1/4

Mark Barnes · Mar 27, 2020

rolling_Thunder said:
According to the dealership date book (from Hamtrack Historical) 6 cylinders got the 7 1/4, all V-8s for the 8 3/4 except the manual trans Hemi and 440 cars with the Dana

View attachment 927930

That's what I was hoping for! As soon as the car shows up Monday/Tuesday, I'll send pics. Thanks!

Mark Barnes · Mar 27, 2020

YY1 said:
nearly all 1966 B body cars except 6 cyl that I've seen came with an 8 3/4

for 67, I've seen some 273 and 318 cars come with a 7 1/4

My luck...whatever the good one is, I'll get the OTHER one.

beanhead · Mar 27, 2020

Mark Barnes said:
My luck...whatever the good one is, I'll get the OTHER one.

If there's no cover bolted on the back side, you gotcha an 8-3/4. If it is, look at the big casting number on the driver's side behind the yoke and let us know what the last three numbers are.

Mark Barnes · Mar 27, 2020

Darter6 said:
Had a 69 and a 70 that came with a 8 1/4 '' too. But I'm pretty sure that a 67 would have a 8 3/4''.That way we can tell for sure.By the way Hi Mark ! Thanks for joining up.

Car is not in my possession yet. As soon as it shows up from CA, I will send pics.

beanhead · Mar 27, 2020

Mark Barnes said:
Car is not in my possession yet. As soon as it shows up from CA, I will send pics.

Oh! Cool. The anticipation would drive me nuts (short drive some say...)

440 4 speed · Mar 27, 2020

I have a 67 Charger body, rusty, originally from Illinois. It had A/C, 318, 2 core 26 inch rad, that I have, console car, and a 71/4 differential.

WP29440SE · Mar 27, 2020

blowing spider gears with a 7 1/4 in an A body is bad enough. I imagine they didn't last long in a B body. I've seen many with an 8 1/4 which seemed to be the norm with the small blocks.

YY1 · Mar 27, 2020

8 1/4 was not available in 66/67

440 4 speed · Mar 27, 2020

YY1 You are correct .

Mark Barnes · Mar 30, 2020

Ok, so the car finally showed up. Here's a picture of the rear end serial number...and a couple more. I have low standards, but I'm pretty happy. My son is amazed...it was worth 10 times the price to see him get excited about building this car.
Anyone that can tell me any of the history of this vehicle, I'd appreciate it. I have no idea what all the identification numbers mean....

YY1 · Mar 30, 2020

That looks like a 741 case 8 3/4 which is date correct.

My guess is a 2.94 gear.

I LOVE that color.

The best resource for 66/67 fender tag decoding while not complete is the 66/67 Charger site.

I don't have the link handy, but it's been posted here several times.

440 4 speed · Mar 31, 2020

RH41 Belvedere 4 door sedan Premium upholstery
31- 273 2 barrel V8
5- auto
335- should be 5 -7.00x14 black 4-4 steel belted police tires
831- August 31 built
Shipping order number
Line 2.
A/2- 2.76 ratio axle(great economy)
TRM/H1Q-high quality, cloth vinyl bench,
turquoise
PNT/KK1-medium turquoise metallic
UBS/L- Dark uppercut door frame paint
Row 5
E/1- cleaner air package
X/2-tinted glass windshield only
6&7 row
-h/7-fender mounted turn signals
-m/3-mouldings -deck lid release knob
I don’t see a code for the radio. Also the 741 on the center section is a small pinion.

Here's how little I know...

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