Converting driveshaft to 1310 U-joints

[jdxnc]

Starting this project from an idea Jake Montgomery did for his car but for the 3K rear diff.

Last year I broke 2 OEM U-joints on the tail section of my driveshaft and we know the cost of the OEM parts are getting ridiculous these days, not to mention availability. I already have the DSS carbon fiber front section so those are solid, this is the weak point in the drivetrain currently. I know a full CF shaft now exists from DSS and I already spoke to them about converting mine but they said it would be better to sell it and buy a whole new one

So here is the parts list needed, sourced from driveshaftparts.com, I ordered 2 of each because I plan to make a spare.

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Jake's for reference:

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Shipping it out today, hoping to have it back next week

 

[Pjj]

What Hyundai is that off of?

 

[GHSTII]

The timing of this is immaculate. I may go for it as well. How’d you choose who to rebuild it for you? Just any willing local mechanic shop?

 

[TJCTalon]

So this is for a 3k rear or stock 2g?

+1 on who did you choose the build it for you? This is a great idea. I dont like the 1 piece driveshaft, but with the upgraded 2 piece your still limited by the ujoints obviously.

 

[jdxnc]

The timing of this is immaculate. I may go for it as well. How’d you choose who to rebuild it for you? Just any willing local mechanic shop?

Wow, sorry I neglected to update this thread for so long, my bad.

I just had a local driveshaft place do it. It needs to be re-balanced after so it needs to be someone who does them.

So this is for a 3k rear or stock 2g?

+1 on who did you choose the build it for you? This is a great idea. I dont like the 1 piece driveshaft, but with the upgraded 2 piece your still limited by the ujoints obviously.

You can get the flange for either 3k or 1g/2g.

This is ideally used with a 2 piece driveshaft, where the front 2 are already upgraded. The DSS shafts already use 1310 series so basically it will now be the same u-joint for all.

Here's my finished shaft, ran it all of 2024 with consistent low 1.4x 60's without a single issue.

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[Misterflipster]

Starting this project from an idea Jake Montgomery did for his car but for the 3K rear diff.

Last year I broke 2 OEM U-joints on the tail section of my driveshaft and we know the cost of the OEM parts are getting ridiculous these days, not to mention availability. I already have the DSS carbon fiber front section so those are solid, this is the weak point in the drivetrain currently. I know a full CF shaft now exists from DSS and I already spoke to them about converting mine but they said it would be better to sell it and buy a whole new one

So here is the parts list needed, sourced from driveshaftparts.com, I ordered 2 of each because I plan to make a spare.

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Jake's for reference:

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Shipping it out today, hoping to have it back next week

When you say a full carbon fiber one exists from DSS, is that still available and what is the HP rating, also a link please? (Obviously im going to look on my own but for anyone reading the thread maybe for future readers)

 

[Ludachris]

When you say a full carbon fiber one exists from DSS, is that still available and what is the HP rating, also a link please? (Obviously im going to look on my own but for anyone reading the thread maybe for future readers)

You'd find it here:

Eclipse / Talon Driveshaft - Driveshaft Shop

the driveshaft shop pioneered high-performance Driveshafts - Mitsubishi - Eclipse / Talon driveshafts many years ago and has led the way ever since

driveshaftshop.com

 

[Misterflipster]

I may have misunderstood, this is till just a 2 piece setup though huh, not a single. Sad times. (Dont care if its carbon fiber or not, just looking to eliminate the rear shaft issues in general, but seems like the flange upgrade may help mitigate some vibration though)

 

[jdxnc]

I may have misunderstood, this is till just a 2 piece setup though huh, not a single. Sad times. (Dont care if its carbon fiber or not, just looking to eliminate the rear shaft issues in general, but seems like the flange upgrade may help mitigate some vibration though)

It's power rating is more than we need to worry about, it's the exact part Boostin is running on the Red Demon. DSS explained it's not good to do a single shaft for our cars due to the alignment(if you look, the diff and tcase aren't perfectly aligned.

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[Ludachris]

DSS explained it's not good to do a single shaft for our cars due to the alignment(if you look, the diff and tcase aren't perfectly aligned.

I was going to say that the 1-piece design has been known to not be ideal for these cars because of the alignment.

 

[DreamChaser7]

I personally would love a step by step how to tech article for this with part number references. I have the aluminum DSS shaft and would like to do this but am like , what do I do? .

 

[Tyeler18]

I personally would love a step by step how to tech article for this with part number references. I have the aluminum DSS shaft and would like to do this but am like , what do I do? .

All you're doing is changing the very rear U-joint out for a 1310 joint. The 3 part numbers listed in the OP are the flange that bolts to the rear diff, the 1310 u-joint, and the yoke that will be welded into the very end of the rear shaft replacing the stock yoke so that it will accept the new 1310 joint that then goes with the new rear flange. Driveshaft shop should be able to easily knock this out for someone wanting to do it.