diff strengthing

I'm sure this has been talked about on here and I did a few different searches, anybody have any posts about this subject, or should I just fit a Volvo diff ...

No one on here has any experience with solid rear ends.... Especially Volvo stuff
Volvo guru in 5....4....3....2....

I have been reading the how to prep an escort book and they make mention of strengthening the stock axle by adding some sorta bar... hears a photo link.

http://www.doublegmotorsport.com/rsprep/06-Rear%20Axle.pdf

The blurb about strengthening the stock axle should be on the first page.



Edited 1 time(s). Last edit at 11/13/2013 08:36PM by Eric Ewert.

It all depends on the live axle and the particulars of the design on if any strengthening like that is needed. It normally is not needed on most such axles....especially if you are not running the East African Safari. Some of the SW US rallies seem to have the roughest roads annd it does not look like you will be running those. Are you doing a 79 Corolla like your moniker?

use a toyota van 7.5 rear axle 4.30 gear 4 on 4.5 bolt circle
very strong and the lsd from a mid 80s supra bolts in so will an lsd for 7.5 toyota truck

---

I would rather drive a slow car fast as a fast car slow!
first rule of cars: get what makes you happy, your the one paying for it!



Edited 1 time(s). Last edit at 11/14/2013 07:19AM by tdrrally.

I was thinking about swapping but I'm pretty sure my little corolla would then have a fat ass...I'll have to do some measuring

Quote
Eric Ewert
I have been reading the how to prep an escort book and they make mention of strengthening the stock axle by adding some sorta bar... hears a photo link.

http://www.doublegmotorsport.com/rsprep/06-Rear%20Axle.pdf

The blurb about strengthening the stock axle should be on the first page.

Somebody wasn't thinking very hard with the bar idea...
Bar
___________________V Force...How much bend resistance you think a long bar stick out has>
A) more than a wet noodle
like a pencil
C) like my rock hard cawk

Look at 6.6

How hard is it to bend a flat piece of aluminum on edge. Strength is function of Hgt of the material, from roughly 100 to 260mm

If you---or the OP can do a version of this, it is infinitely stronger:

---

John Vanlandingham
Sleezattle, WA, USA

Vive le Prole-le-ralliat

www.rallyrace.net/jvab
CALL +1 206 431-9696
Remember! Pacific Standard Time
is 3 hours behind Eastern Standard Time.

Quote
79corolla
I'm sure this has been talked about on here and I did a few different searches, anybody have any posts about this subject, or should I just fit a Volvo diff ...

What are you talking about, the diff or the whole axle?

Adam Crane has a volvo axle is his corolla. I have one in my volvo. both with welded diffs. They are a good deal as they are plentiful and very cheap, and can be geared to just about any ration for $130 from Yukon gear.com.


Rear axles are almost a wear item. They take a ton of abuse. I killed one by hitting a big rock, turning it into a banana. Adam has broken an axle housing and on another occasion had a ring and pinion fail. So it seems to me to be an item that should be readily available, I have a spare in my long term parts pile.


If you want to be totally hardcore, get a toyota truck axle, then you can have a real LSD diff.

Quote
79corolla
I was thinking about swapping but I'm pretty sure my little corolla would then have a fat ass...I'll have to do some measuring

All depends on what engine you use and what sorta POWERZ it makes...
A big margin of saftey--or reliablity is a good thing.. The small Toyota axles even in the AE86 are tiny little things intended for seeing 1600cc or limp, flaccid power sent thru on the way to pick up 32 sacks of groceries...

Stress comes from what?
Power sent into the diff
weight of vehicle
impact

Are you going to leave the limp flaccid 1600 in and only drive to pick up a bag or 2 of groceries?

---

John Vanlandingham
Sleezattle, WA, USA

Vive le Prole-le-ralliat

www.rallyrace.net/jvab
CALL +1 206 431-9696
Remember! Pacific Standard Time
is 3 hours behind Eastern Standard Time.

Lol... no Its got enough groceries ...the pic you posted john is exactly what I've been looking for, I've seen a picture like that elsewhere and cannot find it again , my plans are 2tc yes it has the 3kc in it now , bullet proof little bastard , t50 and some readily available diff..that is my plan...

If I do break an axle then I'd like to know I could find another , the corolla is pretty narrow and finding something to fit would be hard, so If I just beef up the one I've got and the punkin goes, I could always find another one of those but the axle would be hard to find.

Quote
john vanlandingham

Quote
Eric Ewert
I have been reading the how to prep an escort book and they make mention of strengthening the stock axle by adding some sorta bar... hears a photo link.

http://www.doublegmotorsport.com/rsprep/06-Rear%20Axle.pdf

The blurb about strengthening the stock axle should be on the first page.

Somebody wasn't thinking very hard with the bar idea...
Bar
___________________V Force...How much bend resistance you think a long bar stick out has>
A) more than a wet noodle
like a pencil
C) like my rock hard cawk

Look at 6.6

How hard is it to bend a flat piece of aluminum on edge. Strength is function of Hgt of the material, from roughly 100 to 260mm

If you---or the OP can do a version of this, it is infinitely stronger:

Missed section 6.6 ill be honest ive only skimmed this chapter.

That photo you posted looks way better, the piece of bar in page 1 would help a bit with up and down forces but the force thats trying to push the diff backwards id agree, it be similar to having a pencil in there.

The diff brace you just threw up here however... i may have to attempt something like that.

Quote
79corolla
Lol... no Its got enough groceries ...the pic you posted john is exactly what I've been looking for, I've seen a picture like that elsewhere and cannot find it again , my plans are 2tc yes it has the 3kc in it now , bullet proof little bastard , t50 and some readily available diff..that is my plan...

ya know in a short little thang like a No-rolla a little wider track wouldn't hurt,
Do a tape measure check of the width, and post it..
Talk if fine.
Numbers is better-er-er.

Out here still pently boo koo old pickups with the 7.5 axle. They were narrower than the 8" stuff i like for the Volvos.

---

John Vanlandingham
Sleezattle, WA, USA

Vive le Prole-le-ralliat

www.rallyrace.net/jvab
CALL +1 206 431-9696
Remember! Pacific Standard Time
is 3 hours behind Eastern Standard Time.

Heading out now...I'll post when I'm done freezing ....hate this weather shit

48 inches to the backing plates, i also have a 4wd 93 pickup and its 54 to the backing plates, is that to big of a difference, the rear drums on the trucks are gianormus id have to find bigger brakes for the front, a 70's early 80's celica would fix that , also the hubs would be larger..