1967 chevelle 12 bolt

[michael1]

I have a 67 chevelle rearend with moser 33 spline axles,spool and c-clip eliminators. My question is how much power can this thing take. It has 4:88 gears in it and I need 3:73 gears. If it can't take the power I need it to take I would rather sell it before I spend more money on gears and labor.Thanks for any input.

[Tod74]

It can take plenty.

[michael1]

what do you call plenty?

[Tod74]

I don't know...

I have one with a strange spool and axles with 5.14 gears in my car . The axle tubes are welded up and it just has a stock cover... I Have no clue the power level but it is a 13:1 540 BBC with a solid roller . Powerglide with a brake..car weighs around 3150-3200 lbs. Ladder bar/ coil overs... 1.31 60 ft

Never had any problems so far knock on wood, but my car is just a NA bracket turd....

[michael1]

Thanks,I guess I will try it sense I already have it. It just makes me a little nervous because this thing will have about 900lbs of torque in a 3400 pound car.

[Tod74]

Wow.....what is it? just curious.


http://yellowbullet.com/forum/showthread.php?t=84228

http://yellowbullet.com/forum/showthread.php?t=80295

Just curious...a 1967 chevelle should have the narrow housing.I think they switched to the wider one officialy in 68 but I have one that I know came factory in a 67 elcamino and it is the same width as the 68 and up rears... hat narrow one isn't too easy to find anymore...might be worth a little bit to a guy restoring an old chevelle. Shame to bust it.

[michael1]

It's a 632 big duke 18* motor with two dominators and we plan on putting a fogger on it also. But that is motor only that we are looking for that much power.

[michael1]

If anyone is interested in the rearend I will sell it if the right offer is made. It is from brake drum to brake drum.It has the brake lines still hooked up with the bracket that bolts to the rearend cover. It has a stock cover on it.

[Tod74]

Yeah when I said plenty I never figured on you having the kind of deal that you have... :oops:

[monzaz]

And exaclty what are your intentions of the car? ALL drag race or is this a car that will hit the track once a month and is truely a pro street car that does monster burn outs?

If you are Drag racing what equipment does this car have as far as suspension and tranmission goodies etc.

Lets get you some good info here not guesses.

This rear is already c-clip eliminated so the worth is already partial gone. It has been modified and can never go back to Original condition.

You have a very good start with the pieces you have in it. As long as the builder has set it up for the conditions you intend on using it for I do not see any trouble. Again I will state suspenion plays a large roll in keeping any rear alive. Tire shake and pinion angle etc. put undo pressure and strains on the internal parts of the rear.

I would say get some aftermarket caps support cover weld them axle tubes to the center section and if you have stock susupension chevelle you better upgrade to at the very least poly bushings and some type of no hop or geometry changing suspension control arms.

Need some more info on the car again too. Any aftermarket rear diff will be made beefier with larger and thicker tubes and castings....So if you have money then I would spend it ...sounds like you have the money cause that motor I am sure ain't cheap. :)

I can get you deals on Moser stuff if you need help there. Jim

[michael1]

I was thinking about putting all Dick Miller suspension parts on the car. He said the car will hook extremely hard and at 3300-3500 pounds that is what scares me.He said that they have people running in the 7's on the same tire.I'm not looking to go that fast but I still want to be safe and I don't want the rear to be the weak link.I bought the rear from a friend for a descent price and that is the only reason that I got it.I just wanted to know if I should use it or put something like the strange s60 in it.I have to pay to change the gear anyway so maybe I should just put that money towards a new rearend.Is $1600 to much to ask for this one?Thanks

[hammertime]

IMO you need a different rear end, that motor is going to make some power and the last thing you want to do is snap a axel or break a rearend and mess up the quarters on that car.

[monzaz]

You already have 33 spline axles aftermarket because 12 bolts never came with 33 stock. SO they must be aftermarket. you have c-clip elim kit - again if you do (which I doubt you will) break an axle your safe again.
You have a spool again you can not get any better for what you are doing.
As I stated make sure your axle tube are weld to the cast center section...(stitch weld this if you doing it in the car or you will warp the axle tubes)

Main bearing caps would be the only upgrade if they are not already done.

GO racing and enjoy .

They only thing I worry about is that however set the rear end up did it correct and the back lash is in the .004-.007 range. A dial indicator with a magnetic base will tell you that measurement.

do not go over kill ...you have a good base rear use it. Jim

[michael1]

on the end of the axles it has m/e, so is that moser axles?

[hammertime]

on the end of the axles it has m/e, so is that moser axles?

Correct is it like a sticker looking ME tag or like a casting into the axle ?

[michael1]

casting (raised)

[hammertime]

Reason I asked is the raised casting means its a older axle they switched back in the 90's on how they labeled the ends, but for sure a Moser Axle.

[michael1]

Is it still a good quality?

[hammertime]

Should be fine, I've ran them several times (have a set in my dragster now)