Here's how I set up my clutch release.
Fork and shaft are ZF parts from RBT.
McLeod 16525 Pantera adjustable release bearing and collar.
Girling 64673467 slave cylinder.
Lever arm from Bob Wood at Safir.
Quaife E62G1121 bellhousing.
Here's how I set up my clutch release.
Fork and shaft are ZF parts from RBT.
McLeod 16525 Pantera adjustable release bearing and collar.
Girling 64673467 slave cylinder.
Lever arm from Bob Wood at Safir.
Quaife E62G1121 bellhousing.
Seats and carpet arrived today from RCR. Woohoo!
This makes it possible to complete a long list of tasks that I couldn't do without the seats:
Install the seats
Steering column
Steering cut-out in dash
Pedal bracket and associated plumbing
Throttle cable through rear bulkhead
Shifter
Shift cables through bulkhead
Rear view mirrors, inside and out
Wiring harness final positioning and clamps
And more . . .
Credit is due to Bill at RCR for excellent packaging, among other things. The seats arrived in perfect condition.
This makes it possible to complete a long list of tasks that I couldn't do without the seats:
Install the seats
Steering column
Steering cut-out in dash
Pedal bracket and associated plumbing
Throttle cable through rear bulkhead
Shifter
Shift cables through bulkhead
Rear view mirrors, inside and out
Wiring harness final positioning and clamps
And more . . .
Credit is due to Bill at RCR for excellent packaging, among other things. The seats arrived in perfect condition.
Last edited:
It took some time to find the perfect pilot bushing. I started with the Ford Motorsport D8TZ-7600-A pilot bearing. I assembled the transaxle with the Quaife bellhousing, which is 4", and a rear engine plate. Using a borescope I found the end of the clutch disc splines on the input shaft very close to the crankshaft as shown here. So any bearing like the Ford product that extends beyond the end of the crank is not going to work. A 4.5" bellhousing such as the Quicktime unit would have avoided this issue but created others, and I didn't want to waste that half inch of space.
It was hard to find a good bronze pilot bushing that wasn't magnetic. Here are the ones I tried.
The custom bushing is from http://www.detomasoregistry.org/Members/Parts4Sale/PilotBushing.asp
The one I chose was the RAM Clutches BU50J which is available from Summit Racing for about twelve dollars.
After installing the bushing in the crankshaft I temporarily assembled the bellhousing and the gearbox and checked the clearance.
It was hard to find a good bronze pilot bushing that wasn't magnetic. Here are the ones I tried.
| Manufacturer | Model | Advertised ID | Advertised OD | Advertised Height | Measured ID | Measured OD | Measured Height | Magnetic? |
|---|---|---|---|---|---|---|---|---|
| AT Clutches / Pioneer | PB50J | .673 | 1.379 | .561 | .671 | 1.378 | .577 | Yes |
| Custom machined | Pantera | .670 | 1.378 | .720 | No | |||
| Dorman | 14656 | .672 | 1.379 | .561 | .671 | 1.379 | .580 | Yes |
| McLeod | 8-1380-2 | .672 | 1.379 | .561 | .670 | 1.378 | .500 | Yes |
| Pi Motorsports | .671 | 1.378 | .578 | Yes | ||||
| RAM Clutches | BU50J | .672 | 1.380 | .579 | .617 | 1.380 | .575 | No |
The custom bushing is from http://www.detomasoregistry.org/Members/Parts4Sale/PilotBushing.asp
The one I chose was the RAM Clutches BU50J which is available from Summit Racing for about twelve dollars.
After installing the bushing in the crankshaft I temporarily assembled the bellhousing and the gearbox and checked the clearance.
Before installing my transaxle, I connected the shifter that came from RCR, for testing purposes. It worked fine. But I decided I wanted something more precise. Driver controls are crucial to the driving experience! The main issue I see with the original shifter is the way the rail shift cable and the gear shift cable both attach to fixed points on the shift rod mechanism on the gearbox. As a result, the position of one affects the geometry of the other.
CNC Performance Parts offers both a shifter and a ZF transaxle adapter of very high quality. The gear shift mechanism geometry remains the same regardless of the position of the rail shift mechanism. I also like how both cables can be routed on the same (right) side as there is more space there. This enables fewer and gentler curves in the shift cables.
Along with the CNC shifter and adapter I am using high-temperature, low-friction cables from Control Cables. They have stainless rod ends, stainless support tubes, and low-friction seals too.
Anyone wishing to duplicate this setup should order 814-LTT-3-79-RS push-pull cables from Control Cables. The 79 denotes the length in inches. Adjust the length to your needs, especially your chosen position of the shifter. By design, this shifter and adapter combination uses the same length for both cables, assuming they will be routed along the same path.
CNC Performance Parts offers both a shifter and a ZF transaxle adapter of very high quality. The gear shift mechanism geometry remains the same regardless of the position of the rail shift mechanism. I also like how both cables can be routed on the same (right) side as there is more space there. This enables fewer and gentler curves in the shift cables.
Along with the CNC shifter and adapter I am using high-temperature, low-friction cables from Control Cables. They have stainless rod ends, stainless support tubes, and low-friction seals too.
Anyone wishing to duplicate this setup should order 814-LTT-3-79-RS push-pull cables from Control Cables. The 79 denotes the length in inches. Adjust the length to your needs, especially your chosen position of the shifter. By design, this shifter and adapter combination uses the same length for both cables, assuming they will be routed along the same path.
Last edited:
I sold my GT40 in September of 2021. I miss it.
But what makes the situation much better is the buyer, who is a very friendly and capable guy as well as an amazing driver. He often updates me on the progress he's making and he's doing some excellent work. He agreed to let me share his progress on the forum.
But what makes the situation much better is the buyer, who is a very friendly and capable guy as well as an amazing driver. He often updates me on the progress he's making and he's doing some excellent work. He agreed to let me share his progress on the forum.
Glad it went to a good home. Love to see the progress.
Excellent craftsmanship Bryan. The new owner certainly got himself a nice ride.
Regards Brian
Regards Brian
Was there any particular reason you chose the Safir lever arm over the others that exist for this transmission (e.g., the arm included with the Pantera Performance kit)? Also, did you do any lubrication of the shaft at the points where it goes through the casing? The reason I ask all this is that I have had issues with heat soak binding and extremely heavy clutch pedal. Thank you!
/s/ Chris Kennedy
Very disappointed Bryan. I think I see a speck of dust on the #2 header tube. LOL Beautiful car.
I love that CNC shifter set up. I bought one for my GT-R build. I have a Coyote/ZF setup and I'm hoping it will fit without modifications. It appears to be a nicely built product.
I love that CNC shifter set up. I bought one for my GT-R build. I have a Coyote/ZF setup and I'm hoping it will fit without modifications. It appears to be a nicely built product.
Mainly I chose the Safir part because I was familiar and comfortable with the company. The shaft came pre-installed from RBT with nylon bushings and I did not disassemble it.
Brainf, Capri's & Gt40's, a perfect combination.
Capri & Bubble arches are very seldom seen.
My V8 Supercharged with Bubble's
Capri & Bubble arches are very seldom seen.
My V8 Supercharged with Bubble's
Sweet!!!
Bryan - was your car an open top? I see the windscreen installed but no center spider?
