I have dig into the bigger axles as much as i think i can. Here is what i found
1. srt axles are .98 in dia. but are they stronger?
2. 04 ,05,06. most limited axles are the same but
3. 2007 & 2008 seem to be the LARGER axles. 1.25
4 I have only checked 2 both 08's and both had the larger axles.
if you look on ebay at the srt 6 axles you will see the size drops down at the rubber cover
if you look at a 07 or 08 limited you will see the shaft between boots, the axle shaft does not change.
do your own research as i am not 100% sure this is true,, I do have two sets of the larger axles, one for my new V8 and one set for my c320 wagon. hope this helps the members that want or need the larger axles.,,
Oh do you see the ring that is welded on all the so called srt 6 axles ,, like they use to be a two piece axle
The axles are the same left and right,,( driver and passenger)
link to 08 with a part number,,
https://www.ebay.com/itm/For-Chrysler-Crossfire-2004-2008-SurTrack-CH-8260-Rear-Driver-Side-CV-Axle-Shaft/283107146141?fits=Model%3ACrossfire&epid=235738969 &hash=item41ea80399d:g:8HIAAOSwsc5bdTs4:rk:9f :0

https://www.ebay.com/itm/New-CV-Axle-Shaft-fits-2004-2008-Chrysler-Crossfire-TRAKMOTIVE/142952657551?fits=Model%3ACrossfire&epid=235738969 &hash=item2148a4728f:g:eMwAAOSwizRbm47m:sc:Shippin gMethodExpress!33328!US!-1

and then there is the axle for the srt 6 ,,
, https://www.ebay.com/itm/2005-2006-Chrysler-Crossfire-SRT6-Factory-OEM-Axles-HalfShafts-Pair-CF010/162726362687?fits=Year%3A2006%7CModel%3ACrossfire& hash=item25e33f3e3f:g:SvIAAOSwiHpZ8d-n:sc:FedExHomeDelivery!33328!US!-1:rk:3f:1

.

 

Thanks for the info JIM, Woody

 

woody when you bought yours, i had already found mine in a junk yd but didn't know what car they came from,, now we know. here is a pic of mine taken when i first got them you can see the difference,the srt 6 is in the middle. jim

 

It's possible that the smaller axles are solid and the larger axle is hollow.. not necessarily stronger, correct?

 

you bring up a good point, so i just weighted them, both weight 17 lbs ea. now i have to cut one to be sure,, i know the srt 6 axle is solid. because i broke one ,years ago, if the larger one was solid it would have to weight more,than the smaller one. , I think Chrysler put out a bid for axles and the co. got the bid and made solid axles,, then on the next bid the co. that got the bid made the hollow ones ,both the same weight but the hollow one are 44.4% stronger
so yes same weight ,it has to be hollow and also is stronger thanks for your input.
Strength to weight ratio for hollow shaft is 44.4 % higher than Strength to weight ratio for solid shafts2.

Strength to weight ratio is better for a hollow pipe than a solid rod." This means a hollow cylinder is stronger than a rod of equal mass and the same material. A hollow cylinder with a bigger inside diameter is better. In the limit x → 1 the hollow cylinder is twice as strong.Jul 29, 2011

 

 

Huh, Torsional I presume.

 

 

Pranjal Singh, MechE (4th Year) at IIT, Delhi
Answered Jun 18, 2015 ·
All the answers here said most of it in terms of solid mechanics theory of pure bending of beams. Since you used the term 'shaft' meaning we're talking about torsion, I'll just add a layman explanation regarding that:

Since the mass is constant, A hollow shaft is necessarily a result of reallocation of material from axis to periphery. This results in decrease of slenderness of the shaft and hence, it's torsional rigidity increases.

Explanation:
The strength of a shaft implies the maximum torque it can transmit. It depends on Torsional rigidity of the shaft since it renders the stiffness to the shaft. Torsional rigidity is defined as the torque required to produce a twist of one radian per unit length of the shaft. and by torsional formula:

T/(θ/L)=GJ=Torsional rigidity.
So, Stiffness and hence strength is proportional to J which is:
by maths, less for solid shaft and
by intuition, less for most slender of the two (solid shaft).

 

I posted larger axles , stronger axles , solid or hollow I don't care . some people on here want stronger axles now you have the info, your choice the end.!

 

 

This thread reminds me of the old phrase "If it ain't broke, don't fix it". AMX actually broke his, thus his need to look for bigger,stronger axles. I've learned that hollow shafts of the correct metal are stronger than solid shafts of correct metal; I think.

 

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