WA Turbo 400 short shaft yolk - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**Desert Rat** · 08-21-2014, 08:39 PM

67-70 truck only t400 tranny yolk, getting tough to find! 55.00 shipped. Its been cleaned amd its ready to use!

**Desert Rat** · 08-22-2014, 07:21 PM

Make me a offer. I need cash by Sunday to cover a promise to pay bill, after Sunday it goes back in mt hoarding box for the next 20-50 years! lol

**70shortfleet** · 08-23-2014, 12:46 AM

What is the different between the 67-70 and 71-72 400 yolk?

Livrat · 08-23-2014, 07:03 PM

Les, I'll chime in here since I am the one who supplied him with the info.
I have found the early truck only T400's have a different yoke, The outside diameter is smaller than any other T400's, they actually use a thicker output shaft bushing in the tail housing which also means a different seal.
Here are a few pictures of different T400 yokes, the one the left is one is the one posted for sale, the outer diameter is roughly 1.694" dia. the others are all roughly 1.90". They all have the same spline count.

08-21-2014, 08:39 PM	#1
Desert Rat Senior Member Join Date: Dec 1999 Location: Darrington, Washington Posts: 3,963	Turbo 400 short shaft yolk 67-70 truck only t400 tranny yolk, getting tough to find! 55.00 shipped. Its been cleaned amd its ready to use! Attached Images

08-22-2014, 07:21 PM	#2
Desert Rat Senior Member Join Date: Dec 1999 Location: Darrington, Washington Posts: 3,963	Re: Turbo 400 short shaft yolk Make me a offer. I need cash by Sunday to cover a promise to pay bill, after Sunday it goes back in mt hoarding box for the next 20-50 years! lol

08-23-2014, 12:46 AM	#3
70shortfleet Senior Member Join Date: Apr 2010 Location: St.Peters, MO Posts: 2,226	Re: Turbo 400 short shaft yolk What is the different between the 67-70 and 71-72 400 yolk?

08-23-2014, 07:03 PM	#4
Livrat Member #1049 Join Date: Jun 2000 Location: Troy Montana Posts: 3,940	Re: Turbo 400 short shaft yolk Les, I'll chime in here since I am the one who supplied him with the info. I have found the early truck only T400's have a different yoke, The outside diameter is smaller than any other T400's, they actually use a thicker output shaft bushing in the tail housing which also means a different seal. Here are a few pictures of different T400 yokes, the one the left is one is the one posted for sale, the outer diameter is roughly 1.694" dia. the others are all roughly 1.90". They all have the same spline count. Attached Images Last edited by Livrat; 08-23-2014 at 07:10 PM.



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