Need driveshaft recommendation
#1
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Car: 1985 Trans Am
Engine: 400
Transmission: 700R4
Axle/Gears: 3.70
Need driveshaft recommendation
See my sig for engine specs. I haven't had the car to the dyno yet, but the 400 is thumping out some serious power. I just shelled my u-joints tonight. I don't know anything about driveshafts. As far as will they hold up to my engine, will a stock aluminum one from an LS1 car be strong enough, or do I need one with aftermarket U-joints? I don't competetively race the car, it is just a street car, but when I drive it, I do like to cut loose with it from time to time. Will somebody please make a recommendation for me. I know I could probably buy the really expensive one from Spohn, but what will be the best bang for my buck?
Thanks,
Eric
Thanks,
Eric
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Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
A stock driveshaft is probably fine.
Those Flowtechs are probably killing enough power to keep you from hurting anything anyway.
Those Flowtechs are probably killing enough power to keep you from hurting anything anyway.
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Car: 1985 Trans Am
Engine: 400
Transmission: 700R4
Axle/Gears: 3.70
I know those Flowtechs suck, but I was so "smart" and put in a 7-quart oil pan per the recommendation of my buddy, so I totally screwed myself for running any kind of large diameter y-pipe. I've got Alston SFC's and a Spohn crossmember, so I can't run longtubes, and the kick outs on the oil pan are so big, the only way the exhaust shop could build a y-pipe that didn't hang way down under the car was to run a 2.25" pipe from the driver side and a 2.5" pipe from the passenger side, y-ing into my 3" cat back. Even if I ran the 1.75" SLP shorties, the y-pipe would still kill me. The car is fast, but trust me, everytime I see that oil pan, I want to shoot myself, and right now, I'm too lazy to go to all of the work of changing it. Sorry that was off-topic; just had to vent about my frustrating exhaust.
Last edited by Eric's85TA; 09-28-2006 at 11:04 PM.
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Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
If you get one custom made, get it made from 3" x .083" steel tube. 1330 spicer u-joint yokes should be more than enough but if you upgrade everything to use the 1350 u-joints, you'll never break anything. A u-joint upgrade means you need to get the driveshaft made with 1350 full round ends. The transmission and differential should also get 1350 yokes however conversion u-joints can be used until everything is upgraded.
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Car: 88 GTA "Cocaine"
Engine: 350 tpi
Transmission: 700r4
Axle/Gears: 3.27
the ls1 driveshaft made my drivetrain as smooth as a lexus
OH YEAH ITS ALL BRAND NEW
SO EVERYBODY CATCH THE BOGALO FLU-BEASTIES
OH YEAH ITS ALL BRAND NEW
SO EVERYBODY CATCH THE BOGALO FLU-BEASTIES
Last edited by jamon8; 10-05-2006 at 10:33 AM.
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