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Old 09-29-2014, 05:27 PM
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grivera grivera is offline
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Impressive! Stock type u-joints?

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Will Rivera

'69 Firebird, 400/461, 290 Eddy D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears
'69 LeMans Vert, XS 350, #47 heads, TH400, 10 Bolt 3.23 gears, work in progress
‘66 Lemans, 455, 310 KRE D-Ports, HR 236/245, TH400, GV OD, 12 bolt 3.73 gears - see it here:
https://youtu.be/RP_s1wJKm_Y?si=K0NZxoTyaGcj8Dcb
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Old 09-29-2014, 05:34 PM
ta man ta man is offline
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Originally Posted by grivera View Post
Impressive! Stock type u-joints?
They are the heavy duty stock style...one of the parts that will get changed this winter will actually be this driveshaft..its one of my "junkyard" parts on the car...my old car used to have a vibration ..pulled this driveshaft off a rusty parts car put new u joints on it..no more vibration...my other junkyard part is my distributor...

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Old 10-01-2014, 08:52 PM
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mchell mchell is offline
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They are the heavy duty stock style...one of the parts that will get changed this winter will actually be this driveshaft..its one of my "junkyard" parts on the car...my old car used to have a vibration ..pulled this driveshaft off a rusty parts car put new u joints on it..no more vibration...my other junkyard part is my distributor...
I'm not making a ton of power, but I just changed out my old stock tapered driveshaft(3"X2.5") with 3R ujoints......still intact after many, many runs

went to a 3.5" driveshaft with 1350's....first thing I noticed was the weight difference!....the 1350 yoke's and ujoints add some weight!.......massive pieces of hardware.........beats putting it into the wall at 120mph....piece of mind

what weight are you at?

good runs!....

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71 GTO, 463, KRE 295 cfm heads ported by SD Performance, RPM intake, Qjet, Dougs Headers, Comp cams HR 246/252 ...11 to 1 , 3.55 cogs, 3985lbs.....day three- 11.04 at 120mph ....1.53 60', 6.98 1/8 mile
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Old 10-02-2014, 06:22 AM
ta man ta man is offline
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Haven't weighed this car yet..the old one was right at 3900 lbs with me in it..This one may be 100lbs lighter..I will weigh it soon I'm curious.
Most likely going again Oct 10th to the track to test again..it will be cooler as long as there is some track prep that night should be faster!

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