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Driveline Transmission, Clutch, Gearing, etc...

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  #91  
Old 12-05-2013, 02:58 PM
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Quote:
Originally Posted by customblackbird View Post
Quick 52 there's a 3" shaft for sale in the auction section. 54" so u could shorten it.
Thanks need to get a length...
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  #92  
Old 12-05-2013, 11:28 PM
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No prob, but its got 1330 u joints lol. Still cheaper than buying a new one if you can just shorten this one.
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  #93  
Old 12-10-2013, 07:24 PM
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Well i finally got some time to work on the car due to snow. I installed the driveshaft to check that the trans is centered in the driveshaft loop which it now isn't ugh. I want to say its less than 1/2" from the top of the loop but more like 1" from the bottom. The rear suspension isn't fully loaded yet either so thats why the slip yoke is that far out, should go in about 1/8-1/4" more when fully compressed.

I fabbed up the new transmission cross ember, this time I used a stock trans crossmember and added a 5/16" plate for the mount and then used some small gussets to reinforce it. Afterward the crossmember was cleaned and painted with POR15. This was much easier than tabbing my own like the C6 required. And there was no way to get the C6 bracket to work in this application. You can also see how far i have the trans pushed back compared to where it would be stock (firebirds came with 700r4 and 2004r transmissions.

In order to gain some more clearance between the driveshaft and the loop I used some washers to space the crossmember farther away and then used the trans mount bolt to bring the tail of the trans down. My trans is fully suspended and hangs off the back of the block with no trans mount due to the tight fit with the BBF and the BBF headers.

So the trans is basically all done. Just need to wire up the speedo sensor, temps sensor, kick down cable, shifter cable and brackets and run a 12V to the lockup connector and fill it up with fluid. Got about 3-4" of snow today so won't be till april ish when I can get the car out to test the new trans setup. Which gives me plenty of time to swap to EFI and finish all the odds and ends.
Attached Images
File Type: jpg trans crossmember fabbing.jpg (93.3 KB, 18 views)
File Type: jpg 2004R installed with crossmeber and driveshaft.jpg (94.7 KB, 14 views)
File Type: jpg 2004R trans crossmember.jpg (88.7 KB, 16 views)
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  #94  
Old 12-21-2013, 09:07 AM
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(quote) In order to gain some more clearance between the driveshaft and the loop I used some washers to space the crossmember farther away and then used the trans mount bolt to bring the tail of the trans down. My trans is fully suspended and hangs off the back of the block with no trans mount due to the tight fit with the BBF and the BBF headers.
(quote)
Trans mount,no trans mount...Not sure where you're going here.Looks like a trans mount.

Unless that yoke is a foot long or the shaft really pulls up with the suspension loaded,your drive shaft is too short IMO.With a slight out of balance and those big ol 1350's spinning,it will eventually wallow out the splines,taking the bushing and seal with it.Been there.Or it might be fine,depends on the condition of the yoke and the tailshaft.

You are gonna love that EZ2.Ran into a guy I know with a big inch FE,couldn't keep it running for at least 5 min after starting on an 80 deg.day.Went to EZ,starts and runs perfect right away,put it in gear and take off,on a 20 deg.day! I'm sold.Keep us posted
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  #95  
Old 12-21-2013, 10:57 AM
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Quote:
Originally Posted by thermod View Post
(quote) In order to gain some more clearance between the driveshaft and the loop I used some washers to space the crossmember farther away and then used the trans mount bolt to bring the tail of the trans down. My trans is fully suspended and hangs off the back of the block with no trans mount due to the tight fit with the BBF and the BBF headers.
(quote)
Trans mount,no trans mount...Not sure where you're going here.Looks like a trans mount.

Unless that yoke is a foot long or the shaft really pulls up with the suspension loaded,your drive shaft is too short IMO.With a slight out of balance and those big ol 1350's spinning,it will eventually wallow out the splines,taking the bushing and seal with it.Been there.Or it might be fine,depends on the condition of the yoke and the tailshaft.

You are gonna love that EZ2.Ran into a guy I know with a big inch FE,couldn't keep it running for at least 5 min after starting on an 80 deg.day.Went to EZ,starts and runs perfect right away,put it in gear and take off,on a 20 deg.day! I'm sold.Keep us posted

ALittle confused here. The rear of the trans has somehow tilted up alittle too much during the swap, causing the driveshaft to not be "centered" in the driveshaft loop as it was before. Its closer to the top of the loop, so to compensate I lowered the trans mount to pull the back of the trans down to center the driveshaft more in the loop.

How is my driveshaft too short? Its 51.5" long and the max length for a 3" DS is 55" otherwise I had to step it up to a 3.5" shaft. The whole shaft is balanced to like 9K RPM and comes fully assembled so the balancing stays intact. Yoke is a brand new Spicer slip yoke, and tailshaft is original but in good condition splines looked fine. This trans was behind a 170hp 305 SBC for its life so its very little strain on the trans parts lol.

Reason I was worried about the driveshaft being centered is that when I hit the track I swap the rear tires out (has 26.5" tall street tires 315/45/r17) and swap to MT radials 295/65/r15 which is a much taller tire. But by doing so I need to extend my rear suspension to compensate for the height of the radials. So i had put in weight jacks in the back springs which is basically a screw that extends the rear springs upwards to adjust ride height kinda like a coil over. This allows me to get the clearance for the taller radials. I was worried about suspension compression and the driveshaft rubbing on the top of the loop. I should be good to go.

Im going to start a thread on the EFI swap, I already got the new fuel system run for the EFI up to the motor. Just need to purchase the EFI which is like $2300 and I will prob go with there dual sync distributor so that puts me at like $2650. I would modify my dursapark but I've heard of lots of probs getting them sync'd right. Can you find out more info on your friends setup? did he run a stock distributor? MSD or FAST?
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  #96  
Old 12-23-2013, 08:46 AM
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He's running a MSD 6AL amd a MSD dist.He couldn't stress enough how simple everything was.
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  #97  
Old 12-24-2013, 06:02 PM
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Any idea on the model of the MSD distributer or part number?
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  #98  
Old 12-25-2013, 08:53 AM
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Never looked at the dist that close.It was an FE motor so the #'s probably wouldn't help you.
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  #99  
Old 12-25-2013, 10:44 PM
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I was only wondering bc that same model/type distributer would work in the 460 version from MSD. You can convert all mag pickup distributers but u need to remove the reluctor roll pin and drill and tap the reluctor wheel for a set screw. Then set timing so its some number FAST wants so the ECU knows the timing. They said even if you do it 100% correct that there is still a 50% chance it won't run right. And Ill end up buying FASTS plug and play distributer anyway. He said that ppl usually try to modify the MSDs and he doesn't know the duraspark off hand. But the MSD distributers are like $250+ anyways and FAST sells there's for $340 and its plug and play.
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  #100  
Old 12-26-2013, 09:53 AM
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Yeah,I guess I would go for the FAST dist too.But....in all the vids I saw on dyno pulls,hp comparison to EZ1,carb,there was no mention of the dual sync being used except on Frieburger's Super Bee.I assume the unit was given to him and his pitch for their dist was about the same as the factory site,more accurate timing.While this might be true,I'm going to be pissed if I find out later that the stuff I..and you.. already have works as good and we threw our cash away on some marketing ploy.
The friend's dist is a MSD 8594.It works great and He's no electronic genius,that I know.I'm one of those guys that have to be convinced.They have till spring to do it.

Last edited by thermod; 12-26-2013 at 10:01 AM. Reason: adding text
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