grand champ

Hey boys, Im planning on welding a diff for a drag car. What is the best way to do it, anyone got pics, where do you weld??

I searched and found people humming and hawing about wether or not to do it, and ive decided im gunna do it for sure. But i just want to see how people have done it before?

Thanx in advance.

S@nt0s

depends on the diff... but i dont have pics... we welded our toyota diffs all the time and drove them on the street

dmotoguy

its really not the best of ideas..

b20vtech

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by grand champ &raquo;</TD></TR><TR><TD CLASS="quote">Hey boys, Im planning on welding a diff for a drag car. What is the best way to do it, anyone got pics, where do you weld??

I searched and found people humming and hawing about wether or not to do it, and ive decided im gunna do it for sure. But i just want to see how people have done it before?

Thanx in advance.</TD></TR></TABLE>

i herd that u won't be able to turn anymore.....

S@nt0s

yea u can still turn it will just be locked all the way around unlike a LSD

boosted91crx

unless you mean weld the pins so the dif doesnt fly apart, this is not the same as making it a LSD but rather helps keep it from chucking out a dif pin, i never did it on a honda but i did do it on my SHO, it involves making small steel braces in my case shaped like L's and tig welding them to the dif pin and a bolt head to the ring gear. here is a pic of how we do it in SHOs

Now if you mean weld the spider gears to make it a spool, then that is easy to you simply have some one weld as many of the spider teeth together that are over lapped as they can reach.

S@nt0s

a welded diff in fancy terms is a spool.....

paulzy

iTrader: (1)

if you're set on a welded diff, spend the money and buy a spool, IMO, way stronger than a welded stock diff.

SPOOLINmatt

spools are like 300$, just get one of those.

PHDZINE

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by paulzy &raquo;</TD></TR><TR><TD CLASS="quote">if you're set on a welded diff, spend the money and buy a spool, IMO, way stronger than a welded stock diff. </TD></TR></TABLE>
and lighter but again if your set on welding up your diff. then here goes...you first put an axle in each side of the diff to center the diff gears...you need to then heat up the diff up to around 300deg....then weld up the spider gears together. Any teeth that are touching, weld them together....thats it. Dont forget to put an axle in each side of the diff or else you wont be able to put the axle in later

94draglude

Had a welded diff in an h22 and it definatly sucked. Your car wil "crab" when you turn. and when you get so far in your turn your steering wheel will have a mind of its own and rip your arm off. It really is not worth the effort.

tony1

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PHDZINE &raquo;</TD></TR><TR><TD CLASS="quote">
Dont forget to put an axle in each side of the diff or else you wont be able to put the axle in later</TD></TR></TABLE>

Haha, learned that one the hard way!

hondasarethebest

also dont let the diff cool down to fast it will crack.. what we did was heat it up and then weld it and set it in a thing of old used oil.. for about a hour or so.. something about used oil causes it to hold its strength but make sure its in a well vented area cause it will stink a shop up...never had a single problem with mine

PHDZINE

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hondasarethebest &raquo;</TD></TR><TR><TD CLASS="quote">also dont let the diff cool down to fast it will crack.. what we did was heat it up and then weld it and set it in a thing of old used oil.. for about a hour or so.. something about used oil causes it to hold its strength but make sure its in a well vented area cause it will stink a shop up...never had a single problem with mine</TD></TR></TABLE>
The process is called oil quenching. It's a form of heat treating metal, making it harder...cooling it down rapidy but not like using water that could cause it to crack.

grand champ

So basicly just weld all the spiders and everything toghether so they cant move!

Thanx for the pointer of putting the axels in while doing it, i wouldnt have and then had problems!!

SOHCinWA

Make sure that when you weld the Spider gears all up to put the axles in the ends so that it is aligned right...