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People ask me all the time why I don't bolt up my slicks and just let my car fly. It's really fun to try and explain that I don't want a halfshaft to come through my spine.
Basically I tested my luck one day at the track with numerous 4k RPM clutch dumps on E.T. Streets and managed not to break anything. Since that day I've gotten wiser. I've got even more power now AND crappier U-joints.
I had to replace the u-joints on my driver's side half shaft. I couldn't afford the $100 spicer's so I had to go with the O'Reilly ones. I don't remember exactly what brand they were. I did know for sure that I didn't want "Brute Force." In any case the car runs great, my squeaking is long gone, etc. I'm just seriously afraid to bolt up my slicks. I simply can't afford to break anything.
My plan for the future, whenever I might actually have some money, would be to go with new Spicer U-joints all the way around, along with carbon fiber driveshafts and halfshafts, with billet yokes. After I get all of this done, what's gonna be the next thing to break?
It's a 6-spd so I've got the D44 rear. I don't think the gears are an issue, but what about the spindles?
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13
Re: What is the weakest link? (Nathan Plemons)
Well Nathan, your profile lists "some bolt ons". If you are just running bolt ons (and not a big shot of nitrous) then your rear set up should be good to go with a D44 and stock parts, even with slicks.
After speaking with a GM employee who owns two vettes, he tells me that the halfshafts were designed to be the weak link. He paints his shafts to monitor twisting. Soon as he notices the slightest bit of twist, he replaces them. But I would vote for the clutch as well since abuse of the clutch would over ride any weakness in the shaft.
I've noticed on the forum that most automatic guys have twisted shafts and 6 speed guys have broke spindles.
This is why on my six speed car I leave the tires to be the weak link. I'd rather spin than break something, especially if I'm 1,000 miles from home.
In the automatic, since it only goes to the track 20 miles away, I'm not as concerned.
I've had slicks on my car before and the clutch did just fine, it actually just bogged the engine. Utlimately though I'll never put an auto in the car. If I was making a pure drag car I would, no doubt, but since I've gotta have fun driving it on the street the 6-spd is the only way to fly.
I think your "week link" will still be either the 1/2 shafts or the Dana 44. While I don't think you will have a problem with either with your set up they will still be the wekest link in the chain. The Dana 44 is prety tough and our only real choice it is still not the best rear end in the world.