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 Tempest / Lemans / GTOs
 1968/69 GTO Weight Distribution and Spring Rates
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GtoGuy32
Cochise

USA
842 Posts

Posted - 10 Jun 2015 :  9:59:49 PM  Show Profile  Reply with Quote
Hi Guys,

I am wondering if anyone knows what the front/rear weight distribution is of a 68/69 GTO?

I would assume 60F:40R, but I have found some literature saying that it is closer to 50:50.

My car weighs 3500 lbs with me in it.

Does anyone know the stock spring rates for the front and rear springs in these cars?

I don't have AC, but do have a 455, 4 speed, power disc brakes, no sideway headlights in my car.

Thanks

-Dave

1968gto421
Tribal Scout

USA
1 Posts

Posted - 07 Oct 2015 :  6:57:13 PM  Show Profile  Reply with Quote
Judging by the understeer (push) in my '68 GTO, I would say the 60/40 is closer to the truth. As for spring rates, I have Eaton Detroit Spring to be very helpful as they have OEM info from the manufacturers as well as feedback info from racers and street rodders. Contact info on website https://www.eatondetroitspring.com/

"No replacement for displacement!"
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GtoGuy32
Cochise

USA
842 Posts

Posted - 10 Oct 2015 :  9:38:01 PM  Show Profile  Reply with Quote
I weighed my car at the track today before racing started and had enough time to weight to entire car, the front, and the back.

69 GTO, Iron Headed 455, Mucine 4 speed, 12 Bolt:
Entire Car: 3550 lbs
Front: 2050 lbs
Rear: 1500 lbs

Weight distribution: 58 F: 42 R

Not too bad I suppose, we were close on the numbers.

-Dave
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