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F41 suspension

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Old 12-04-2004, 02:23 AM   #1
darrentpi
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Default F41 suspension

Does anybody know what all intails with the F41 suspention, aside from heavy duty shocks, is there other diff internal upgrades of any sort?
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Old 12-04-2004, 03:03 AM   #2
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Stiffer springs. 550 lb/in coils up front, seven-leaf rear spring, about 300 lb/in I think.

I'm not sure about sway bars. I think they weren't any bigger.
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Old 12-04-2004, 04:26 AM   #3
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Quote:
Originally Posted by 69autoXr
Stiffer springs. 550 lb/in coils up front, seven-leaf rear spring, about 300 lb/in I think.

I'm not sure about sway bars. I think they weren't any bigger.
The front sway bar was a 15/16" bar (P/N# 3831972), rear leaf spring was 7-leaf (as indicated) with P/N# 3828811 and front coil springs were P/N 3832518. Shock P/Ns were 3171488 (front) and rear 3171489.

While small block cars have shown up with rear sway bars, the consensus is that the rear sway bars was a big block suspension package and were never delivered from the factory with one. The rear sway bar was not an F41 suspension item. FE7 was first small block equipped rear suspension sway bar item.
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Old 12-04-2004, 04:33 AM   #4
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Default F41 and Gymkhana

What's the difference between F41 and Gymkhana?
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Old 12-04-2004, 09:01 PM   #5
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Well I have all whats been listed, I just wanted to confirm that, I replaced my front coils, only because there was to much sag, but I never parted with the old coil springs. I did replace the shocks, not realizing they were F41 shocks, and chucked them out. Can you still buy F41 shocks?
Darren
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Old 12-04-2004, 11:26 PM   #6
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The BB rear sway bar is 9/16 and helps tremendously.
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Old 12-05-2004, 12:58 AM   #7
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I have F41 sways and springs on my '69. The front bar is 1 1/8" and the rear is 9/16". I also have Bilstein shocks and they are far superior to the original style F41 shocks.
The car drives great and goes around corners like crazy.

Enjoy
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Old 12-05-2004, 06:13 AM   #8
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Quote:
Originally Posted by SharkPilot
I have F41 sways and springs on my '69. The front bar is 1 1/8" and the rear is 9/16". I also have Bilstein shocks and they are far superior to the original style F41 shocks.
The car drives great and goes around corners like crazy.

Enjoy
Sharkpilot:

The front 1 1/8 bar was not introduced until 1975 with FE7 suspension. Original F41 sway bar was a 15/16 inch bar. A previous owner of your 69 "tweaked" the suspension.
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Old 12-05-2004, 06:15 AM   #9
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Quote:
Originally Posted by vttedrm
What's the difference between F41 and Gymkhana?
FE7 was introduced in 1974 and "tweaked" in 75. It included a 7/16 rear sway bar and the monster 1 1/8 inch front bar along with the 7 leaf rear spring and shocks.
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Old 12-05-2004, 03:47 PM   #10
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Quote:
Originally Posted by hunt4cleanair
Sharkpilot:

The front 1 1/8 bar was not introduced until 1975 with FE7 suspension. Original F41 sway bar was a 15/16 inch bar. A previous owner of your 69 "tweaked" the suspension.

Hi Hunt4cleanair,

I think you're correct. I was actually the one that installed the springs and sways many years ago (1983-84). I used a Chevrolet Power catalog as my reference for buying the parts from Chevy. It was a late 70's edition so it would have had the then current F41 specs in it. So I stand corrected. The car sure likes them though.

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Old 12-05-2004, 04:24 PM   #11
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I'm considering upping the rear sway bar in my 78. The stock FE7 7/16" rear bar isn't cutting it.

For ref, FE7 was 550/300 with 1 1/8" front sway and 7/16" rear sway. Not quite on topic but good to note in case people were curious.

-Steve
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Old 12-05-2004, 11:23 PM   #12
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PacinCalifornia, Go to school on Shark Pilot on that rear bar. I've tried numerous combos and 1 1/8 front and 5/8 rear is as large as I would go unless you have very wide sticky tires.
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