Quote:

---

Quote:

---

forget the 83/4 get a dana

---

Jeez', It's a 9.5:1 360 with a hydraulic cam for God's sake...and it didn't even break the ring gear or axle shaft, it broke a posi.

"Get a Dana"

---

How many more of them does he have to break before it won't seem so ridiculous

I've seen similiar motors scatter 727's like they were made of fine china.
The combo is obviously hard on parts or this thread wouldn't be here.

As for the question, If you can't swing the dana now, go with the spool. It's cheap, and there's no pin to come out and smash your gears.

Most who say you can't drive a spool on the street, have never tried. My car is a spool(now in the dana, and was in the 8 3/4 too), and street driven. I doubt you would know the difference if you drove it

Quote:

---

Quote:

---

a dana isint in the budget right now. its either fix the 8 3/4 or let it sit broken.

---

Let it sit until you can afford a GOOD Dana, small blocks with 4 speeds kill 8 3/4 eventually every time you race them, street or strip In fact any 4 speed Mopar that is raced on the street or strip will break the 8 3/4 eventually if it makes any power and hooks up at all Huh, Quicktree

---

When I was reading this post, I thought it was Quicktree

Quote:

---

Quote:

---

Quote:

---

a dana isint in the budget right now. its either fix the 8 3/4 or let it sit broken.

---

Let it sit until you can afford a GOOD Dana, small blocks with 4 speeds kill 8 3/4 eventually every time you race them, street or strip In fact any 4 speed Mopar that is raced on the street or strip will break the 8 3/4 eventually if it makes any power and hooks up at all Huh, Quicktree

---

When I was reading this post, I thought it was Quicktree

---

It ain't my favorite Ford Nine inch fan, it is me, the 8 3/4 lover. But not in 4 speed cars that hook Sorry to disappoint you or any other true Mopar lovers like me But I would rather be truthful and help a fellow Mopar racer save some bucks and frustration on trying to do something with a 8 3/4 to make it live behind a 4 speed when it won't live 4 speed cars eat parts, you have to feed the monster, you can feed it tires or axles or U joints or ring and pinion or clutches and so on, but you got to feed it. I like feeding them tires and clutches, not U joints, axles or ring and pinion gears Been there, done that many years ago, Hemi Cuda 4 speed on nine inch tires on 8 3/4 in a 4 speed car

Quote:

---

The 489 or 742 case are the ones to use. Both are strong. Pick one and get a new clutch style suregrip or spend the bucks on a locker for it if you don't want to use a spool. CHIP

---

If you decide to go with the 489 case put in a solid
pinion spacer which is already in the 742 case, go with
either as long as you have the clutch posi for it

Quote:

---

I tore up another rear. the pin that runs throught the posi unit came out and ran into the pinion gear and destroyed it. it was the type of posi without the clutch disc in it. this is the 3rd time this type of posi has came apart on me like this. all different cars but same type of posi. the clutch type has never came apart on me like this.

is this type of posi unit just not as strong?

---

Quote:

---

Quote:

---

a dana isint in the budget right now. its either fix the 8 3/4 or let it sit broken.

---

Let it sit until you can afford a GOOD Dana, small blocks with 4 speeds kill 8 3/4 eventually every time you race them, street or strip In fact any 4 speed Mopar that is raced on the street or strip will break the 8 3/4 eventually if it makes any power and hooks up at all Huh, Quicktree

---

Quote:

---

Aside from a crappy posi, what kills 8.75's the caps? I have not read about anyone breaking an axle just the caps.http://www.dragracingonline.com/xi_3-toc.html
http://www.risesales.com/pages/Dragracecentral/john_mccormack.html

look at this car

---

Quote:

---

A 4 speed will break 8 3/4 parts if it hooks up a bit. I would not go spool!

---

And a solid hub dual disc clutch will break something between the clutch and the Dana. Put some slicks on it and you will find that something

Quote:

---

To everyone who keeps asking me why i keep using the cone posi here is your answer. I didnt know what was in the rear until i broke it and tor the rear apart, it was 3 different cars.I didnt use that type again. but if the car i got came with it in it there was no way to know until i broke it and tore it down.
thanks for all of the advice.

---

Quote:

---

I tore up another rear. the pin that runs throught the posi unit came out and ran into the pinion gear and destroyed it. it was the type of posi without the clutch disc in it. this is the 3rd time this type of posi has came apart on me like this. all different cars but same type of posi. the clutch type has never came apart on me like this.

---

No, it was some people that replied that made it seem like he kept rebuilding them.

In typical webboard fashion, once you get more than a 1/2 page of replies your original question is distorted...

Quote:

---

Quote:

---

A 4 speed will break 8 3/4 parts if it hooks up a bit. I would not go spool!

---

And a solid hub dual disc clutch will break something between the clutch and the Dana. Put some slicks on it and you will find that something

---