TT front end conversion. Drive shaft splines questions

jcth1

Active Member
Aug 25, 2007
119
10
Somerset/Toronto/Winnipeg
So I have a TT rack, lower control arms, 312mm calipers and front hubs to collect soon for my pd150.

i have seen the spline hole on the TT hubs is smaller than stock 1.8t or vr6 splines and if memory serves correct then my 2.0 Jetta and likely my pd150 is both using the larger bore spline setup on the drive shafts.

so my question is this. Should I swap out the bearing and the hub assembly and fit into the TT carrier or purchase TT driveshafts from the seller also and just refit the smaller splined 2wd shafts to my pd150?

I Ask as I can fit new bearings to the TT hubs so would be willing to mix and match to get the best setup for the pd150 whether that be the larger diameter or smaller diameter spline set and bearing fitted.

cheers
 

Thai-wronghorse

Self proclaimed Cupra R addict & butcher!
Dec 3, 2015
2,058
931
Kent
The PD150 Leon and mk4 Golf/ Bora /Jetta use shafts with a 30mm bi-hex nut on the end, I'm pretty sure some of the earlier 2WD Audi TTs have this type as well but generally speaking anything with the BAM engine just like the later mk1 Cupra Rs they'll have they're own type of shaft and hubs which utilise a 17mm Allen head bolt instead.
You can swap the hub flanges over to the appropriate ones but you'll also need to use the correct bearings to suit.

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jcth1

Active Member
Aug 25, 2007
119
10
Somerset/Toronto/Winnipeg
The PD150 Leon and mk4 Golf/ Bora /Jetta use shafts with a 30mm bi-hex nut on the end, I'm pretty sure some of the earlier 2WD Audi TTs have this type as well but generally speaking anything with the BAM engine just like the later mk1 Cupra Rs they'll have they're own type of shaft and hubs which utilise a 17mm Allen head bolt instead.
You can swap the hub flanges over to the appropriate ones but you'll also need to use the correct bearings to suit.

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The hubs I picked up are the larger internal diameter spline so should bolt up no issues.
 

Thai-wronghorse

Self proclaimed Cupra R addict & butcher!
Dec 3, 2015
2,058
931
Kent
If I remember rightly the actual splined section is the same size, what differs is the fact one is made for a nut and the other for a bolt which has a smaller recess in the hub flange.

Do you have pictures of what you plan to install?

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jcth1

Active Member
Aug 25, 2007
119
10
Somerset/Toronto/Winnipeg
If I remember rightly the actual splined section is the same size, what differs is the fact one is made for a nut and the other for a bolt which has a smaller recess in the hub flange.

Do you have pictures of what you plan to install?

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I am away the rest of the week but will upload here on the weekend
 

Cupra con

Littleredrocketpd150
Feb 16, 2020
14
4
High Wycombe
If I remember rightly the actual splined section is the same size, what differs is the fact one is made for a nut and the other for a bolt which has a smaller recess in the hub flange.

Do you have pictures of what you plan to install?

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Both can be used! I spent god knows trying to source a driveshaft after mine shattered doing laps around a roundabout.
They can both be used, 1.8t and 1.9tdi are the same just older 1.9tdi had solid shafts
 

Thai-wronghorse

Self proclaimed Cupra R addict & butcher!
Dec 3, 2015
2,058
931
Kent
What are referring to exactly when you say solid shafts?

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jcth1

Active Member
Aug 25, 2007
119
10
Somerset/Toronto/Winnipeg
Here are pictures of my front TT hubs
 

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Thai-wronghorse

Self proclaimed Cupra R addict & butcher!
Dec 3, 2015
2,058
931
Kent
Ok they're clearly from an earlier TT as they have the recess for the 30mm bi-hex nuts.
They'll fit your PD150 driveshafts.

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