Bolt Patterns

Reply Subscribe

Thread Tools

Search this Thread

January 25th, 2011, 10:43 AM

TripDeuces

Registered User

Thread Starter

Join Date: Jun 2010

Location: Rogues Island, USA

Posts: 3,613

Bolt Patterns

The 2 speed SP tranny on my 66 has given up or will very soon. This spring I plan to replace it with a T400 SP. My understanding is the converters for the T400's came from the earlier two speeds. Does anyone know this info for sure? My concern is whether the bolt pattern on the original flexplate will match the converter from the T400 SP.
Thanks,
George

January 25th, 2011, 11:16 AM

joe_padavano

Old(s) Fart

Join Date: Mar 2007

Location: Northern VA

Posts: 47,530

Quote:

Originally Posted by TripDeuces

The switch pitch converters for the TH400 are larger in diameter than those for the Jetaway. The bolt pattern on the flexplate should be the same, however.

January 25th, 2011, 11:52 AM

TripDeuces

Registered User

Thread Starter

Join Date: Jun 2010

Location: Rogues Island, USA

Posts: 3,613

Thanks Joe, always good info.

January 25th, 2011, 06:41 PM

66400

Registered User

Join Date: May 2009

Location: Austin, Tx

Posts: 1,393

The same flexplate was used on the 65-7 330, 400 and 425 engines.

Henry

January 25th, 2011, 08:48 PM

TripDeuces

Registered User

Thread Starter

Join Date: Jun 2010

Location: Rogues Island, USA

Posts: 3,613

Thx guys, this is what I needed to know.

January 26th, 2011, 05:03 AM

Boldsmobile

Registered User

Join Date: Nov 2008

Location: Mass

Posts: 1,119

Hey George, dont know if you are interested but a guy in the next town over has one pulled from a working car. I bought the motor a while back and hes been trying to sell the tranny. I think he was asking $150.. Let me know if you are interested and i will forward your email add to him.