Question for those with Tremec 3550/TKO

[Brian992V]

Are the tranny bolts that mount it to the bellhousing the same as a factory
T5 bolts? I need to buy all 4 bolts.

Thanks

 

[Deleted member 87397]

It depends on which bellhousing you are mating it to. What tranny are you using specifically and what bell?

 

[Brian992V]

TKO to the aluminum bellhousing.

 

[Deleted member 87397]

You might be able to get away with the stock size, but I don't have mine mated up to an aluminum bell housing so I can't say for sure. I've got mine mated to a Mcleod bellhousing which required me to drill out the 4 holes on the tranny to half an inch. I think on the aluminum bell you could probably use stock size though and not have to drill the trans.

 

[85_SS_302_Coupe]

I can't remember which, but either my bell housing or the trany itself came with those bolts so i think they are specific but i'm not 100%.

 

[Brian992V]

I bought a 3550 a few years ago and it came with the tranny to b/housing bolts, thats why I think they may not be interchangable.

 

[89SaleenGT]

Are the tranny bolts that mount it to the bellhousing the same as a factory
T5 bolts? I need to buy all 4 bolts.

Thanks

It has been a while since I checked but factory bellhousing to transmission bolts are metric threads.

The Tremec 3550 requires a different dedicated bellhousing and uses SAE bolts for attachment. If memory serves you will need 4 1 1/2"long X 7/16 X 14tpi bolts. Don't take the thread pitch as gospel you may need 7/16X20tpi. check that first.

Hope this helps

 

[Sicarius428]

My AL bellhousing came with the bolts.
Kevin

 

[Brian992V]

Called D&D today and they are different. The Tremec takes a 7/16 course thread bolt and they don't sell them seperatly. They told me to go to a hardware store and get them.