[427L88]

No, the bushing remains the same. Its your clutch geometery the motor plate may effect. May need an adjustible throw out bearing and/or pivot ball to get the clutch geometry right.

There was a "sticky" written up by username MAX DUTCH HEADWORK, aka Al that describes the correct geometry very very well. See if you can find it and stick it in your head. Very helpful.

PS if you are using a solid bushing, BE SURE its not magnetic. PIONEER makes the real deal one.

 

[454bbss]

No, the bushing remains the same. Its your clutch geometery the motor plate may effect. May need an adjustible throw out bearing and/or pivot ball to get the clutch geometry right.

There was a "sticky" written up by username MAX DUTCH HEADWORK, aka Al that describes the correct geometry very very well. See if you can find it and stick it in your head. Very helpful.

PS if you are using a solid bushing, BE SURE its not magnetic. PIONEER makes the real deal one.

thank you.

 

[454bbss]

thank you.

 

[RAMBO]

When I put my TKX in last year Jody warned me NOT to re-use the regular Pilot bushing I had previously installed and instead switch to a slightly deeper one he provided to account for the thickness of the block plate & shield vs a stock bell.

I'm running one of the QuickTime Scattershield/bells, which is part of his well refined "recipe" (along with an adjustable t/o bearing to his spec) so maybe that doesn't apply to other bells...

He also advised to knock the bell locating pins outward a bit as they were defintely not long enough to go through both the block plate and the shield, which allowed the bell to not be 100% positively located as it rested on the taper. knocking the original pins outward1/8" was enough to get it to sit on the flat and not on the taper.

Just relating what I was told and am running.
-Ben

 

[bracketchev1221]

I agree on the dowels. Give them a little more out of the block.

 

[blm]

You need to actually measure how much of your input shaft will engage the pilot bushing. You may need a longer pilot bushing. When I added a Quick Time and a scatter shield I had to add a longer Pilot bushing. Coming from Jody, the input shaft should engage the Pilot bushing a minimum of the diameter of the tip of the input shaft.

 

[454bbss]

who sells longer pilot bushings?

 

[5speeds]

who sells longer pilot bushings?

QUARTER MASTER. As mentioned above check your measurements. Example if you do use a block plate that will move the transmission away from the crank by the thickness of the block plate. If you also happen to be using an Autogear 4 speed case with a STOCK gearset you need to use an extended bushing.

Quarter Master Extended Chevy Pilot Bushing

Buy Quarter Master Pilot Bushing Quarter Master part number 110013 extended bushing

www.5speeds.com

 

[mrpaticular]

One time I used the new bushing that has needle bearings. It fell apart.
Rick

 

[GuysMonteSS]

You can buy longer bushings from Summit.

https://www.summitracing.com/parts/aaf-all26112

Available in bushing or bearing style.
Theres nothing wrong with the bearing bushing IF the bell is properly aligned.
Guy

 

[mrpaticular]

You can buy longer bushings from Summit.

https://www.summitracing.com/parts/aaf-all26112

Available in bushing or bearing style.
Theres nothing wrong with the bearing bushing IF the bell is properly aligned.
Guy

But what if the rear of the bell housing is not straight, the trans case mounts to the bell housing and the input shaft bearing are all off just enough to create an angle. There are 7 different mounting surfaces on the older 4 speeds that can lead to different failures.
How will you lube a needle bearing pilot bearing ? If you do not, it will eventually fail. Clutch dust etc.
Rick

 

[GuysMonteSS]

But what if the rear of the bell housing is not straight, the trans case mounts to the bell housing and the input shaft bearing are all off just enough to create an angle. There are 7 different mounting surfaces on the older 4 speeds that can lead to different failures.
How will you lube a needle bearing pilot bearing ? If you do not, it will eventually fail. Clutch dust etc.
Rick

Well,that certainly is a lot of “if’s“,LOL
And what if the earth fell out of the sky,that could lead to further alignment issues as well.
But,the bearing type are lubed very similar to a throw out bearing.
You pack them with a packer or by hand.
I do know from my own experience that the bearing type of pilot bearing can live if alignment is close enough.
Although ,after reading so many horror stories about them,the last time I had the trans out I did switch to the bushing style.
Guy

 

[bracketchev1221]

One time I used the new bushing that has needle bearings. It fell apart.
Rick

My experience as well. But that was just bolting everything together, Maybe there was some serious misalignment that wasn't checked for. A regular bronze bushing worked fine after that.

 

[David Bates]

I'll add my two cents worth here. Installed a GM needle pilot bearing in the 454 (461 actually) I built and installed in my 1965 El Camino in 1999. Original transmission was a 1965 M20, then a 1970 M22, a Richmond Road Race 5-speed and finally a Richmond ROD 6-speed (-JB gear ratios) and never had a problem with it even with those transmission changes along the way over a fourteen year period. Maybe I was lucky, I don't know but I do have an oilite bronze bushing in my current 565 w/G-Force T56. Enough said! GM used them for many years also fwiw but I'm not aware of any failure trends they experienced.

 

[Bob Tiley]

I also have a 1999 GM roller pilot bearing still in my car with no problems. It's been working fine for almost 25 years.

 

[454bbss]

the longer bronze bearing that do not have a bushing inside just all bronze is that a good choice?

 

[GuysMonteSS]

Yes.
Guy