differential bolt size

[silvergsx623]

Hey guys,

Anyone know the bolt size & thread for the differential on a 89 turbo 5 speed? (the bolts that hold the diff. to the chassis)

Also anyone have the TQ spec?



I sheared one off... not my falt! it was the Audi TT that pulled up next to me:naughty: lol

Thanks guys

 

[silvergsx623]

http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?S=RA&P=42

Those bolts. (found TQ spec btw lol)

 

[Rennat]

i believe they were M12 or M14 x 1.25....

i just had to get one cause i was MISSING one...
the easiest way is to just take the other one out and get a ride to the hardware store... the bolt was like $4 just by its self...

 

[silvergsx623]

Did you get a hardened bolt or just a standard grade?

I'm thinking about finding a grade 8 bolts... or something lol.

 

[jdub]

You need a hardened bolt...metric grades are different than SAE.

Strength wise:
Grade 5 = Metric 8.8
Grade 8 = Metric 10.9

Metric has an additional (stronger) grade above what you normally see for SAE...Metric 12.9 made from alloy steel.

 

[silvergsx623]

aah ok, Thanks.

Anyone know the legnth of the bolts? lol

I may just order some grade 8.8. Highes grade in fine thread i can find.
I found some at Boltdepot.com

 

[jdub]

You might want to consider a grade 10.9

 

[Rennat]

i believe it was a 45 or a 40... i got a grade 10.9...

 

[silvergsx623]

Ok cool. thanks guys.
tomorrow i'll see if there was any more damage

 

[silvergsx623]

holy SH*T!

guess i need a new sub frame now :aigo::aigo::aigo::aigo:

thats where i saw i broke a bolt... then....

top stud/nut

front mount pass. side :aigo::aigo:

stud again.


Do you think this is fixable?

If i grind the crap off and weld 1/4" steel plates, drill bolt holes, reinforce with 1/4 plates and put 1" round tubing in as cross supports?

Or should i just find another subframe and reinforce the piss out of it?
I'm worried i won't be able to find one locally...

Thanks guys