Lost all gear oil today, 1991 Testarossa

here are 2 photos ( found them on my portable harddisk ) from my broken mainshaft with a stock gearbox and rob hayden´s shaft in my competition during I repaired my broken CP and diff. I put this gearbox in to see if it will work. after the broken mainshaft I put in again the other "strong" repaired gearbox and this gearbox with the broken mainshaft is now nearly finished with stronger mainshaft, stronger CP and modena diff. only have to modify the oilpump for more volume. Image Unavailable, Please Login Image Unavailable, Please Login

 

sorry jamie when I hitchhike your great diff thread
but one thing is getting to the next
will stop now

 

if you are within 0,01 mm in the middle I would use it again
if it will break it is normaly easy to replace, so much easier then a diff

 

How much is a replacement .. just trying to evaluate risk reward

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I wouldn't replace it only because its designed to flex just like the aftermarket offering. If you aren't driving it like you stole it it'll outlast you. If you do beat on it you'll be dealing with other failing components anyway. I've thought a bearing support in the bellhousing would be good but that might also take away its ability to be the fusible link. Seeing Romano's broken examples I can say that they don't always break clean like that, Ive seen ones that looked like broken glass when they fail and flung all that debris into the gearbox. Not a simple repair if it fails like that.

 

original?
what diameter your old one has and what this found one?
the earlier ones have been 2 mm less in diameter, but can not rememer if 16 mm old and 18 mm new or 17 mm and 19 mm

still have 2 or 3 at home with the small diameter

 

What about a like for like since this may have been damaged ..not a aftermarket but an original

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Get socket head cap screws 12.9 grade. I usually throw some in with a diff but they were on back order.

 

Neumann mentioned using a stiring grade in another thread ..I will let him chime in

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Image Unavailable, Please Login Image Unavailable, Please Login Thinner one is testarossa and 512 boxer. The thicker one is a 365 propellor shaft. So torque and weight went up, the shaft got thinner. I don’t recall what they did with the 512TR shaft though.

 

The 365 shaft is shorter because the bell housing and drop gear cases aren’t as thick as an assembly.

 

Testarossa is 17mm and the 365 is 20.5mm

 

Stock bolt is 28mm under the head so I buy 30mm and shorten them. It’s a 10 x 1.25

 

Why change the head type to cap head ..how would you use the locking tabs ..just looking for education

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If these bolts are for the half shafts, they're not one time use. If they were, Gabe would have replaced them when he did the rear wheel bearing.

Shamile

Freeze....Miami Vice!

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I see Neumann used them just trying to understand benefits ...thanks Image Unavailable, Please Login

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