Re: 7260 Joint limits...
[Re: Crizila]
#1351340
12/14/12 04:55 PM
12/14/12 04:55 PM
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Joined: Dec 2009
Posts: 20,647 in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
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Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,647
in a cattle trailer down by th...
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Broke one in my 12 second Duster when it was a stick car. Since then I've gone 9.70's with a solid small joint in the front yoke with an automatic, trans brake at 2700 pounds.
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion. '74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion. 2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
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Re: 7260 Joint limits...
[Re: sshemi]
#1351342
12/14/12 05:02 PM
12/14/12 05:02 PM
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Joined: Oct 2008
Posts: 492 South Jersey, NJ
DragDart360
mopar
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mopar
Joined: Oct 2008
Posts: 492
South Jersey, NJ
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9.95 133 2800 lbs 1.39 60 ft
70 Dart Swinger, 2850 lbs SB 408, Bullet roller 264/268 @50 .636 SSDS stage 2 Edelbrock heads, 1 7/8 Headmans, 1050 dominator by Dom, 9.867 @ 133
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Re: 7260 Joint limits...
[Re: DragDart360]
#1351343
12/14/12 05:18 PM
12/14/12 05:18 PM
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Joined: Mar 2003
Posts: 2,516 PA
moparacer
master
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master
Joined: Mar 2003
Posts: 2,516
PA
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Have 7260 joints in my old Duster. Leaves hard with 1.40 60 fts. Just Built my low 11 second Barracuda and used them in it too.
Any quicker then that I would go with the 7290's
67 Barracuda street/bracket car 11.27-119 68 Dart 502 BB 8.70s-152 414 cid SB Dragster 7.65-174
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Re: 7260 Joint limits...
[Re: mopowers]
#1351344
12/14/12 06:59 PM
12/14/12 06:59 PM
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Joined: Aug 2003
Posts: 43,237 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,237
Bend,OR USA
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My Duster and my old M.W. stocker had them My Duster went 10.34 at 128.6 MPH weighing 3450 lbs with a 1.43 60 ft. times they would still be in the car if the 8 3/4 non braced rear end housing hadn't bent up bad enough to tear the ladder bar brackets of the housing The straps stop the for and aft movement, there not intended or designed to bear any of the side loading from the U joint cup, the straps are designed to keep U joint cup in the pinion yoke and prevent any forward or rearward movement of the U joint cups in the pinion yoke As long as you use a good, solid trunion shaft H.D. 7260 joint and a good pinion yoke you should be good BTW, there are two different sets of straps, one for thee 7260 and a different set for the 7290 Don't mix them
Last edited by Cab_Burge; 12/14/12 07:01 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: 7260 Joint limits...
[Re: mopowers]
#1351347
12/14/12 09:49 PM
12/14/12 09:49 PM
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Joined: Nov 2009
Posts: 3,410 Belpre,Ohio
CHAPPER
master
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master
Joined: Nov 2009
Posts: 3,410
Belpre,Ohio
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6.43 @ 107 my best in 1/8. 10.40 @ 130 my best in 1/4,,I've only made about 4 1/4 passes.
If you like drag racing, support your local track.
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Re: 7260 Joint limits...
[Re: mopowers]
#1351349
12/15/12 02:40 PM
12/15/12 02:40 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
How fast have you guys gone with 7260 u-joint pinion yoke with straps???
I still have the 7260... been 8.90s so far but in a light car.. if you have a heavy car it could break if it has good traction.... just like the 8 3/4 if the car is light you wont have any problems... and yes I still use the straps... if you look at the design of the joint you will see that it slips into the yoke OVER half the diameter so the load is applied to the yoke and not the straps... the strap just keeps it from sliding forward
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