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Old 06/14/19, 07:04 AM   #1
Sprintervanlife
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more advice needed- clutch

Ok having a 68 built for me. I (and a friend)did the engine- roller ho 302, mild cam, roller rockers. supposed to have 3.50 gears, stock 3 speed,32x10.50-
anyway I want to supply flywheel and clutch. I'm thinking a 11in Luk but in the future, I will probably want to go hydraulic(just to make clutch easier to depress to since g/f will want to drive it).
So does it matter at all which clutch if I go hydraulic?
Thx
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Old 06/14/19, 07:10 AM   #2
Timmy390
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I went with a Luk diaphragm style pressure plate and clutch 3 years ago and it's great. It's so easy to push and hold. I can't imagine a hydraulic being any easier.

The diaphragm style PP is 1000 times smoother and easier than the stock 3 finger PP

On a side note, 3.50 gears with stock 3 speed and 32's is going to be less than impressive. I ran that combo for 20 years and it was a dog. Consider 4.11's.

Tim

74 Half Cab 351w 3 speed, SN95 Mustang EFI, 2 1/2 SL, 1 inch BL, 33's, 4.09/4.11's P/S (Delphi box), All Ford disc conversion, Factory bench seat
Coming Soon, Ford ZF or NV3550 and grafted rear quarters
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Old 06/14/19, 08:15 AM   #3
Broncobowsher
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You are still dealing with the same forces, Hydraulic clutch won't make any significant difference in effort.

Gearing and tire size are bigger performance issues.

"She's built like a steakhouse but she handles like a bistro"-Zapp Brannigan
Why do people keep expecting "normal" from me?
Full throttle, it either solves the problem or ends the suspense.
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Old 06/14/19, 08:38 AM   #4
Sprintervanlife
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Thx.
good to know about Luk clutch/pp being easy to depress- so no need for hydraulic!!
But a dog? that sounds depressing. I wanted the 3.50/32s for a little less rpm on the hiway.
Maybe I should reconsider
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Old 06/14/19, 09:09 AM   #5
Timmy390
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Quote:
Originally Posted by Sprintervanlife View Post
Thx.
good to know about Luk clutch/pp being easy to depress- so no need for hydraulic!!
But a dog? that sounds depressing. I wanted the 3.50/32s for a little less rpm on the hiway.
Maybe I should reconsider
You will find yourself with no power at highway speeds because the lower RPM is out of the power band. Modern cars and tucks have 6 speeds and even more and the stock Bronco has 3. You will lose speed on every hill you climb.

But hey some don't mind. I ran that combo for 20 years not knowing how good it could be. I changed gears and WOW......Wish I had gone just a touch deeper than 4.11 to be honest.

Tim

74 Half Cab 351w 3 speed, SN95 Mustang EFI, 2 1/2 SL, 1 inch BL, 33's, 4.09/4.11's P/S (Delphi box), All Ford disc conversion, Factory bench seat
Coming Soon, Ford ZF or NV3550 and grafted rear quarters
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Old 06/14/19, 01:20 PM   #6
Sprintervanlife
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Ok, Im convinced😁
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Old Today, 10:20 AM   #7
blubuckaroo
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With your combination, it probably runs fine on the highway. The problem is with the high first gear that came in both three speeds and also the C4 auto.
It makes it a little tough on the clutch in both the three speed and a
auto tranny.
I went the same route a few years ago. I build a pretty torqy 302, only to find it was no improvement pulling my camper trailer. I dropped to 4.11 gears and it was like magic.
I actually wish now I had kept the motor stock and retained the emissions equipment.

'77 Ranger/cut F&R/PS/PB/Vintage Air/2" suspension lift/1" body lift/T tie rod conversion/33-1050-15 BFG K02 tires/ 302/ Edelbrock 500 CFM 4 bbl/Aero Tanks/ Hooker Headers/ dual ex/ NV3550/ B&M shifter/ JB FabTwin Sticks/ 4.11s/rear posi.
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