Boxster S Transaxle & 911 Carrera Axles: What spacers are needed? Options

[The Double S]

For folks that have a Boxster S 6speed transaxle and are using 911 Carrera GKN/Loebro axles (Porsche PT# 91133202415 / GKN PT# 300 758) :

1. What spacers are you using in your 914 for fitment?

2. Where did you source them?

Thanks in advance!

[Cairo94507]

What is that 6-speed going behind? What are you using for a shifter? (IMG:style_emoticons/default/beerchug.gif)

[The Double S]

LS1 and the stock Boxster S shifter

[Cairo94507]

Very nice. (IMG:style_emoticons/default/beerchug.gif)

[tygaboy]

@The Double S - That's the same set up I'm running in my LS car. You need:
- 1/2" spacers between the trans output shafts and the inner CVs along with appropriately longer bolts. Make your own spacer or contact Renegade Hybrids - they supplied mine.
- At the hub end, you'll need a special spacer from Patrick Motorsports, available here:

https://patrickmotorsports.com/collections/...914331aspextpms

[The Double S]

@The Double S - That's the same set up I'm running in my LS car. You need:
- 1/2" spacers between the trans output shafts and the inner CVs along with appropriately longer bolts. Make your own spacer or contact Renegade Hybrids - they supplied mine.
- At the hub end, you'll need a special spacer from Patrick Motorsports, available here:

https://patrickmotorsports.com/collections/...914331aspextpms

Hey Chris! Actually we talked about this a little while back when I was receiving mismatched axles with the same part numbers.

When I reached out to Renegade they seemed like they didn't know what I was talking about when I described it to them but I will give it another shot and call them tomorrow.

Unfortunately I don't have the tooling to make them myself. Think there might be another vendor to supply the 1/2" spacers in the case Renegade can't?

[tygaboy]

I got the spacers from Renegade as a part from their Boxster 6 speed "kit" options.

If you had to have a machine shop make them, it'd be a pretty simple piece. It's just spacer with the 6 bolt holes and a big hole in the middle, to lessen the weight and allow clearance for the bump on the CV.

[The Double S]

No dice. Renegade is telling me that they don't supply it. I'll have to source it elsewhere

[tygaboy]

I just did a quick search for "911 CV spacer" and found a couple options. Here's one -
No idea if the dimension is correct but maybe you can find a spec somewhere, call them and ask...?

https://www.porscheatlantaperimeterparts.co...9633222901.html

[ClayPerrine]

If you have 911 hubs, 911 water cooled axles bolt to the transmission and bolt to the hub with no adapters.

Porsche Axle Shaft Assembly (911) - Gkn 91133202415 

I have them running in my car.

Clay

[The Double S]

If you have 911 hubs, 911 water cooled axles bolt to the transmission and bolt to the hub with no adapters.

Porsche Axle Shaft Assembly (911) - Gkn 91133202415 

I have them running in my car.

Clay

@ClayPerrine can you clarify what you mean by 911 hub?

Are you talking about the Boxster S Transaxle output shafts?

Additionally, not necessarily an adapter, but a 1/2" spacer that longer bolts would pass through to fasten to the Boxster S Transaxle output shafts.

[ClayPerrine]

If you have 911 hubs, 911 water cooled axles bolt to the transmission and bolt to the hub with no adapters.

Porsche Axle Shaft Assembly (911) - Gkn 91133202415 

I have them running in my car.

Clay

@ClayPerrine can you clarify what you mean by 911 hub?

Are you talking about the Boxster S Transaxle output shafts?

Additionally, not necessarily an adapter, but a 1/2" spacer that longer bolts would pass through to fasten to the Boxster S Transaxle output shafts.

The hubs I have in my car came from a 76 911. The splines in them are the same as the axles listed above. The Boxster S transmission flanges are the same size and bolt pattern as the axles. You don't have to change anything, just bolt them up.

Clay

[The Double S]

Thanks. I feel like we may be talking about separate subjects or I am misunderstanding.

The research and feedback I have received was in order to make the axles fit lengthwise between the transaxle and in to the rear control arm, a spacer(s) needs to be used to make the fitment correct because the 911 axle is too short in length.

[mepstein]

@The Double S - That's the same set up I'm running in my LS car. You need:
- 1/2" spacers between the trans output shafts and the inner CVs along with appropriately longer bolts. Make your own spacer or contact Renegade Hybrids - they supplied mine.
- At the hub end, you'll need a special spacer from Patrick Motorsports, available here:

https://patrickmotorsports.com/collections/...914331aspextpms

I should get some of those 5mm spacers made up. At $50 + ship, it's a couple dollars of steel and doesn't cost much more to make ten sets. Maybe Ben should... @MB911
It's needed when you use the later hub centric 911 rear hubs.

[mb911]

@The Double S - That's the same set up I'm running in my LS car. You need:
- 1/2" spacers between the trans output shafts and the inner CVs along with appropriately longer bolts. Make your own spacer or contact Renegade Hybrids - they supplied mine.
- At the hub end, you'll need a special spacer from Patrick Motorsports, available here:

https://patrickmotorsports.com/collections/...914331aspextpms

I should get some of those 5mm spacers made up. At $50 + ship, it's a couple dollars of steel and doesn't cost much more to make ten sets. Maybe Ben should... @MB911
It's needed when you use the later hub centric 911 rear hubs.

Maybe. The hubs you sent me require this? Or did you send early 911 units?

[mepstein]

@The Double S - That's the same set up I'm running in my LS car. You need:
- 1/2" spacers between the trans output shafts and the inner CVs along with appropriately longer bolts. Make your own spacer or contact Renegade Hybrids - they supplied mine.
- At the hub end, you'll need a special spacer from Patrick Motorsports, available here:

https://patrickmotorsports.com/collections/...914331aspextpms

I should get some of those 5mm spacers made up. At $50 + ship, it's a couple dollars of steel and doesn't cost much more to make ten sets. Maybe Ben should... @MB911
It's needed when you use the later hub centric 911 rear hubs.

Maybe. The hubs you sent me require this? Or did you send early 911 units?

I sent you early. They don't need the spacer. That's what you asked had for. I'll send you late if you prefer. no prob.
I used late on my suby build and a set for my future build and thought it was kind of silly to spend $100 on four little metal rings.

[BIGKAT_83]

For the 5mm spacer (washer) you need for the hub to stub axle you can get washers at McMaster Carr industrial supply.

This is a 108 to 110 mm cv joint adapter. I don't know where these came from got them on trade for something else. Give CMS California Motorsports they may have these in stock.

[mepstein]

For the 5mm spacer (washer) you need for the hub to stub axle you can get washers at McMaster Carr industrial supply.

I will check that out. Thanks!

[The Double S]

@BIGKAT_83 Thank you for chiming in. I was about to send you a message.

[ClayPerrine]

Thanks. I feel like we may be talking about separate subjects or I am misunderstanding.

The research and feedback I have received was in order to make the axles fit lengthwise between the transaxle and in to the rear control arm, a spacer(s) needs to be used to make the fitment correct because the 911 axle is too short in length.

That only applies for air cooled 911 axles. The axles from a water cooled 911 fit with no spacers. I have them on my six conversion with a cayman s transmission and everything bolts up with NO spacers.

Clay