U4 Racers..What do you run for kunckle U joints? - Pirate4x4.Com : 4x4 and Off-Road Forum
 
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Old 05-05-2011, 01:32 PM   #1 (permalink)
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U4 Racers..What do you run for kunckle U joints?

Besides the IFS cars running RCVs, what is everyone else running for knuckle joints? Spicer 806s? CTMs? Yukon super joint? Whats holding up to desert racing with some rocks tossed in?

A buddy and I were talking about this the other day and were curious whats in the front of everyones rig.
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Old 05-05-2011, 01:48 PM   #2 (permalink)
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WHen I had my own car I had 2 set's of shafts. 1 set of USA Made Superior's with CTMs, and another set of cheepo's with spicer joints for going fast. The needle roller joint's will last a long time at high speed without fear of wearing them out.

The Rental? It's had the same Longfield Joint's in it since I got it.
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Old 05-05-2011, 02:41 PM   #3 (permalink)
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I run spicer joints.... would like to go to RCV
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Old 05-05-2011, 04:35 PM   #4 (permalink)
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I did the same thing as DSI and had 2 sets of joints. Now I'm just running CTM's all the time. They're holding up pretty well, even better if I actually grease them before each race! Best option in my opinion.
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Old 05-05-2011, 04:41 PM   #5 (permalink)
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I have the newer style longfields with the single zerk fitting, working really well so far.
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Old 05-05-2011, 05:09 PM   #6 (permalink)
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I'm pretty sure my car has the original CTMs that were put in when Randy first built it. It must have over 2000 race miles on them now and who knows how many more blasting around the Hammers. I bought a new set of CTMs before KOH, but they just sit in my toolbox.
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Old 05-05-2011, 05:14 PM   #7 (permalink)
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Enter the buddy

We had a greasable Precision fail at SS that had gotten us through Parker without any signs of wear.

After chatting with a couple of people after the race it sounded like 806x's would be a good choice. There are a second set of shafts with Yukon superjoints, but we're unsure how well they would handle 300 miles of high speed between greasings.
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Old 05-05-2011, 05:19 PM   #8 (permalink)
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CTM's.....7 years and counting
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Old 05-05-2011, 08:22 PM   #9 (permalink)
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I was gonna ask if it was the buddy with the busted greasable joint but nevermind
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Old 05-06-2011, 06:27 AM   #10 (permalink)
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Last three years with Yukon Super Joints.
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Old 05-06-2011, 07:36 AM   #11 (permalink)
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CTM's in both 4400 cars. They get greased prior to each race but I doubt they really need it. They have held up great for years. If I was builing a new solid front axle 4400 car my choice would be Spidertrax shafts and CTM's.
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Old 05-06-2011, 07:48 AM   #12 (permalink)
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After a year and a half of racing, plus two and a half years before that of rec wheeling, my Spicer 806's are probably in better shape than anything else on the rig.

When I had the front axle stripped down over the winter they still felt as good as the day I put them in.
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Old 05-06-2011, 07:58 AM   #13 (permalink)
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Old 05-06-2011, 08:26 AM   #14 (permalink)
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Ctm ujoints same set for the last 8 years
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Old 05-06-2011, 01:30 PM   #15 (permalink)
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Quote:
Originally Posted by FRIZZLEFRY View Post
I was gonna ask if it was the buddy with the busted greasable joint but nevermind
Na it was kyle and I who that were wondering what everyone else is running. Seems that ctms are preferred.
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Old 05-06-2011, 05:13 PM   #16 (permalink)
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Old 05-06-2011, 10:11 PM   #17 (permalink)
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Same as dsi but we're not afraid to leave the ctms in it it doesn't work out to change them. We tried yukon joints and they became ugly. Jack knows the way.
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Old 05-08-2011, 04:28 PM   #18 (permalink)
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CTMs. Zero problems in any desert racing. Mine were 2nd hand rebuilt when I got them. 5 years of beating on them. I tried the RCVs thinking I didn't want to wear out the CTMs with the fast stuff but I Broke 3 of them in two outings. (KOH and XRRA). I have 14 desert and short course races plus a bunch rock crawling and rock racing on the original used set of CTMs.
CTMs are the shit
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Old 05-08-2011, 09:19 PM   #19 (permalink)
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Are the D44 CTM's the shit as well? I was really happy with my stock spicers but not sure they would be up to the task of stock class KoH racing.
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