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Performance Modifications for the NG900 / Old 9-3 This forum contains PERFORMANCE related Q&A's for the NG900 and 9-3. This may also include suspension.

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Old 01-02-2013, 01:22 AM   #1
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Quaife install with noob questions

OK,
My Quaife LSD is here

I'm on holidays next week so shit is gunna start happening.

I'm in the process of trying to find a good gearbox specialist to install my LSD.

I want to make sure the workshop is going to do everything they should be doing when installing my diff.

Is there anything I should be changing whilst I have my gearbox apart ? Like bearings, seals, gaskets and ??????.

Anything notable I should be looking out for?????

Would a general manual gearbox specialist know how to pull apart a Saab Gearbox and install my diff ? Or do I need a Saab specialist mechanic?

More stupid questions as I think of them !


I'm installing the diff into this low km gearbox out of parts car #2.



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Old 01-02-2013, 07:53 AM   #2
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just this stuff is wise once its all apart...
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Old 01-02-2013, 12:41 PM   #3
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Nick from GS would probably tell you that you should only hire somebody with experience rebuilding these Saab gearboxes to do it. I've looked at the gearbox toolkit. It costs about $1,200 on eBay and has some very specialized, unique tools.

If it's not outrageously expensive to ship that weight from your location, you can ship it to GS and have them do the rebuild. But it's probably too heavy to ship via anything less than LTL freight.
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Old 01-03-2013, 01:01 AM   #4
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I wonder if the LSD install kit from GS is F35 specific ??

Or could it also be used for an F25 install??

Maybe the bearings might be different sizes ??

I've found a place in Sydney called "SaabTech". He tells me he has done a few Quaife installs (a handful) and he sounds like he knows what he is talking about.

This is the only Saab mechanic I can find who wants to do the job. The two others didn't want to do it. The would rather leave it to a gearbox specialist.

I'm going to try and do some more digging around. See if I can find a Honda gearbox guru looking for a challenge.

I'd love to stage 2 my gearbox like GS
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Old 01-03-2013, 05:56 AM   #5
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honestly, the biggest challenge is splitting the case IMO
if you dont have the tools to do it, then you're likely to break something

ive split quite a few cases open and put them back together
Harvey is like the god of saab transmissions though
he's likely to chime in here soon enough
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Old 01-03-2013, 12:16 PM   #6
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I was told by a good friend of mine who has 20 years in repairing cars that rebuilding a gearbox is something he would never try himself. There is just too much that can go wrong. Packing the bearings is a bit of a black art. Spacings, shims come into the process, and a lot of it is subjective. It's advanced work best left to those with the tools, experience, and expertise.

That's why a lot of people you talk with won't even touch it. There's a good reason for that.
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Old 01-03-2013, 02:57 PM   #7
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Definitely contact Harvey(Harvey's Autohaus) and/or his "apprentice" Pat(yllwjet).

Bearings, ring bolts, newer style crush sleeve.
I think Harvey has been putting in the reverse gearset from the Cobalt SS boxes as they are stronger of have better synchro's, or something...
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Old 01-03-2013, 04:05 PM   #8
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Sorry I've been away, I have a pile of Emails to reply to. I apologise Guys. Now to bogans Tranny. All he really needs is Nicks Kit. It covers both F25&F35. Pinion bearings are the same on later F25/35. You might want to get a new shift shaft seal if the kit doesn't come with it. Its probably best if you get the "SAABTech" guy in AussiLand to do the install, That way if you have any Issue that you would need to have warranted "I'm Sure he would be glad to take care of. Or the other option includes 24,000 miles of shipping.
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Old 01-04-2013, 01:30 AM   #9
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Thanks for the good answers guys. And I wish I lived next door to you Harvey.

I dropped Nick T a line. He gave me an excellent gearbox video to watch.
Gearbox Setup

I can't believe how much is involved with gearboxes. Like bearing pre-loads and stuff .

Now I can appreciate a gearbox specialist.

I just bought an LSD install kit from GS with ARP ring gear bolts.
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Old 01-04-2013, 04:19 AM   #10
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good luck with the LSD insall, and excellent avatar
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Old 01-04-2013, 10:37 AM   #11
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I dropped Nick T a line. He gave me an excellent gearbox video to watch.
Gearbox Setup

I can't believe how much is involved with gearboxes. Like bearing pre-loads and stuff .
That's a great video. But look at all the specialized tools! You also need a good cantilevered-type dial indicator. The investment in tools alone makes it a tough business. That's why gearbox people tend to be specialists, and tend to be few and far between.

Nick is probably quite happy to share this information, for the reason that once somebody attempts to understand the rebuild process, they punt back to experts like him.
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Old 01-06-2013, 03:51 PM   #12
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O.K,
It's Monday lunchtime over here (and the first day of my 4 weeks holiday .

I just spoke to Saabtech Sydney about my diff install. And much to my surprise they know all about setting bearing pre-loads and stuff. I spoke to the head mechanic and he was saying that back in the ng 900 (cable clutch) days they were always pulling apart gearboxes to replace the reverse gear. So he has done plenty of pull-downs, Just not so many quaife installs, but he has done them. That makes me feel better know they can pre-load the bearings properly,( I'm still going to make him watch my gearbox video )

I'm waiting on my LSD install kit from GS to arrive and a few things from eEuroparts.

I'm dropping the gearbox of on the 17 Jan, After I come back from my North coast holiday to Stockton Beach
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Old 01-07-2013, 04:38 AM   #13
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4 Weeks?! That's really great - enjoy the Holiday at the beach!!
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Old 01-07-2013, 10:06 AM   #14
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I don't think there is anything all that difficult about doing the installation of the Quaife LSD. You just bolt it onto the final drive gear using the special ARP bolts sold by GS in that kit. What is difficult is the process of pulling the case apart and repacking everything during reassembly.

It's too bad you can't install the Quaife without pulling it all apart. That's just life.
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Old 01-07-2013, 04:23 PM   #15
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4 Weeks?! That's really great - enjoy the Holiday at the beach!!
Thanks Tony

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I don't think there is anything all that difficult about doing the installation of the Quaife LSD. You just bolt it onto the final drive gear using the special ARP bolts sold by GS in that kit. What is difficult is the process of pulling the case apart and repacking everything during reassembly.

It's too bad you can't install the Quaife without pulling it all apart. That's just life.
Going by that gearbox video it looks like a hell of a job. I'm sure I could pull it apart and put it back together. It's the pre-loading of the box that looks like it takes alot of skill and experience, That I ain't got .
And it's also the kind of job that if you "mess it up" it's going to be a catastrophic failure for sure.

This is one of the few times I'm paying a mechanic to do my work.

And G.S just updated my order as "posted"
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Old 01-08-2013, 06:48 PM   #16
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Some day soon Harvey, some day soon...we will figure out how to get one of your transmissions into my 9-3.

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Sorry I've been away, I have a pile of Emails to reply to. I apologise Guys. Now to bogans Tranny. All he really needs is Nicks Kit. It covers both F25&F35. Pinion bearings are the same on later F25/35. You might want to get a new shift shaft seal if the kit doesn't come with it. Its probably best if you get the "SAABTech" guy in AussiLand to do the install, That way if you have any Issue that you would need to have warranted "I'm Sure he would be glad to take care of. Or the other option includes 24,000 miles of shipping.
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Old 01-09-2013, 05:22 PM   #17
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Howdy Greg,

You won't go too wrong with SaabTech, they're excellent, and really nice blokes too, happy to chat Saab and very reasonable on cost. They did my suspension and bulkhead repair. I think Dave is the guy I dealt with, he has a white c900 with pretty heavy mods.

Let us know how you go!
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Old 01-09-2013, 06:03 PM   #18
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In for pictures of some 11's you lay down when this thing is in!
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Old 01-10-2013, 03:20 PM   #19
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So far I've only heard good feedback about Saabtech.
Over the phone they sound like they know what they are talking about.
My gearbox goes over on the 17th.

And If I crack 12's,I'll be over the moon.

I still gotta get this thing on the dyno properly
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Old 01-11-2013, 01:41 PM   #20
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Dude, he didn't mean RUN an 11, he meant PAINT an 11!
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