Gsr centre stuffed

[1JUM2NV]

I've got a gsr box with a busted centre.

For racing proposes (mainly 1/4mile) what is better a welded centre or replacing the busted spider gear or what eva needs to be replaced?

Cheers.

 

[4piknup]

Welded centre.

 

[BMGTZ]

have you had it apart ben....usually more than just the centre diff

 

[1JUM2NV]

Yep can u can see the spider gear is stuffed.. It's a pain in the arse as I brought this box, from an older 4g member and was told there was nothing wrong with it, then used it for a daily for less then a week and it was stuffed


I'll look at it better soon but the centre is definitely stuffed

 

[1JUM2NV]

Good side pix 1 and bad side pix 2

 

[4piknup]

Weld it. Unless you want to put brians special finger licking good whatsamabit in there

 

[1JUM2NV]

Ok weld it is.. Where do I take it to get welded

 

[4piknup]

Brian did a good job on that vce. Its still in my car.....
Being only a old 93 and me driving like miss daisy has helped tho.

aldo says to take shaft/shafts with it to keep it aligned while welding.
I dunno if it needs preheat. I would imagine it will.

 

[4piknup]

Few utube clips of guys with welded centres.
and a few threads on how to do it on dsm forum etc

 

[1JUM2NV]

I could weld it myself but being a moving part, wasn't too keen on doing it myself. But will check it out can't be too hard right haha

But in saying that I've welded a Vcu up too. Brian also did my first one. And that is still just as strong

 

[EVO-00X]

Like this...
Step 4: Be careful and first tack weld one spot on the lower pinion. It will then slightly rise on one end on an angle. Hit it back down and then tack weld in another spot.
Then check that the output pinion slides into the lower part of the centre diff ( to ensure youre not welding it on an angle), remove the output pinion and then continuing welding.
Step 2: Only put the viscous coupling on to tack weld the upper pinion onto the centre diff cover so the teeth are in alignment leading into step 3. Once you have a couple of tacks done, remove the VCU so you don't heat it up, then continue with welding all of step 3 completely.

 

[1JUM2NV]

Sweet cheers, rob. Now I just need an oxy haha to heat it up

Or do I just weld it?

 

[DOUGMO]

heat it up for sure mate

 

[BMGTZ]

put it in the kitchen oven for an hour or so.....clean first unless you like your for to taste like oil

 

[evopwr]

if you're welding up the centre diff I think it would be worthwhile hacking up the VC and welding it up as well. would save a couple kilos as a minimum.

 

[EVO-00X]

Or don't touch the VCU. Then if you don't like a welded centre or want to go back to an oem centre or a 4-spider centre, your VCU isn't foobar as you would still be able to use it.

 

[1JUM2NV]

I've got both a complete Vcu and a locked one

But cheers guys will get onto it soon