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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 03-04-2008, 04:01 AM   #1
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viggen trans/engine rebuild

My car doesn't like to get into reverse & I figure when that get's fixed I might as well have my LSD thrown in. Anyone have any ideas on who I should have build the trans & also how much $$$ is it to have it done?

I am also debating on having pistons thrown in the car due to the weak viggen piston issues. What have people paid to have this done?

thanks
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Old 03-04-2008, 04:50 AM   #2
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https://saablink.net/forum/showthread...viggen+rebuild
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Old 03-04-2008, 05:54 AM   #3
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thanks.... never been good at that search stuff
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Old 03-04-2008, 07:16 AM   #4
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It is hard to quote since you never know what will be messed up inside and the parts from saab are so expensive.

We are working on an affordable bearing package. This will help some. I found arp bolts for the Diff less than half of factory.


I love my new gearbox with the update kit, some little fixes and the LSD..
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2.0 GOOSE 500whp + 8500rpm = 11.06 @125 E85
Viggen 439whp / 447tq 12.43 @114 on Gt2871.64, (Now 511whp Gt3076)
Nordic E85 9-3 SS Aero 320hp / 350ftlbs
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Old 03-04-2008, 07:19 AM   #5
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I love my new gearbox with the update kit, some little fixes and the LSD..
Still waiting on what these little fixes are. The tranny is apart now just waiting to get the update kit and LSD installed. What other little fixes are their before its thrown back together?

Feel free to update in other thread.
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Old 03-04-2008, 06:51 PM   #6
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A friend/mechanic told me 30hrs to do the trans + parts, that remove it from my car-rebuild-install. He guessed $3500 by the time the trans was rebuilt, new clutch & whatever else was involved.

I asked him how much if he threw new pistons in the car & he stated about $1500 ish.. so around $5,000 total.

Definantly more then I want to spend on it, trying to see if there are other options....
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Old 03-04-2008, 06:56 PM   #7
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Quote:
Originally Posted by gm View Post
A friend/mechanic told me 30hrs to do the trans + parts, that remove it from my car-rebuild-install. He guessed $3500 by the time the trans was rebuilt, new clutch & whatever else was involved.

I asked him how much if he threw new pistons in the car & he stated about $1500 ish.. so around $5,000 total.

Definantly more then I want to spend on it, trying to see if there are other options....
Pull trans out yourself, send off for R&R, remove head and oil pan, unbolt rods and push out through top of block, put in new pistons and HG, put head and pan back on, put trans back in when it comes in.

You'd at least this way be only paying for the labor on the trans as well as all the parts.



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Old 03-04-2008, 07:19 PM   #8
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Quote:
Originally Posted by gm View Post
A friend/mechanic told me 30hrs to do the trans + parts, that remove it from my car-rebuild-install. He guessed $3500 by the time the trans was rebuilt, new clutch & whatever else was involved.

I asked him how much if he threw new pistons in the car & he stated about $1500 ish.. so around $5,000 total.

Definantly more then I want to spend on it, trying to see if there are other options....
The pistons at $1500 sounds a lot more reasonable than $3500 for the trans.
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Old 04-01-2008, 12:14 PM   #9
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Do you actually have to take the Trans. apart to put an LSD in? Or do you only have to take the Final drive apart? I am planning on redoing my clutch this summer with my uncle who has a full shop. We are going to put in a new clutch, alum. flywheel, and the LSD. We are thinking that all we have to do is take the final drive apart and put the LSD in there. IF that is the case I won't get into the rest of the trans.
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Old 04-01-2008, 12:18 PM   #10
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Do you actually have to take the Trans. apart to put an LSD in? Or do you only have to take the Final drive apart? I am planning on redoing my clutch this summer with my uncle who has a full shop. We are going to put in a new clutch, alum. flywheel, and the LSD. We are thinking that all we have to do is take the final drive apart and put the LSD in there. IF that is the case I won't get into the rest of the trans.
the final drive coming out requires removing everything else as its pretty much the heart of the trans....so yes a full teardown is necessary.



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Old 04-01-2008, 12:37 PM   #11
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Really? Because looking at it from underneath the Final drive looks to be a separate piece from the rest of the transmission. Or is that bump out towards the back of the car on the transmission not the final drive?
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Old 04-01-2008, 12:45 PM   #12
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the final drive is most definetly in the transmission, along with the differential, as it is on 99% of fwd cars (im not saying 100% becuase i dont want someone to say some obscure car) and cant be accesses without a full teardown



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Old 04-01-2008, 12:54 PM   #13
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Full tear-down is necessary. Takes special tools. The biggest factory to durability is proper bearing preload on reassembly and setup.
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2.0 GOOSE 500whp + 8500rpm = 11.06 @125 E85
Viggen 439whp / 447tq 12.43 @114 on Gt2871.64, (Now 511whp Gt3076)
Nordic E85 9-3 SS Aero 320hp / 350ftlbs
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Old 04-01-2008, 09:37 PM   #14
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Are there Saab trans specific tools? Or just trans specific tools? I know that if I get in there I need to do the update kit, new crush sleeve, new seals all around.. What else should I replace? Of course if I find any worn gears or other problems those should be replaced as well...
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Old 04-02-2008, 03:36 AM   #15
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Are there Saab trans specific tools?
yes, thats why you dont see many, if any people doing there own trans work.



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Old 04-02-2008, 05:35 AM   #16
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Even some of the factory tools are not the best. We have made a few custom tools too. I will get a picture of some of the main ones one day.
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2.0 GOOSE 500whp + 8500rpm = 11.06 @125 E85
Viggen 439whp / 447tq 12.43 @114 on Gt2871.64, (Now 511whp Gt3076)
Nordic E85 9-3 SS Aero 320hp / 350ftlbs
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