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  #1  
Old 02-10-2005, 09:37 PM
Dart14 Dart14 is offline
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Question 8 1/4 Rear

Rule Change - Can run a locked rear this year. Does anyone make a spool/mini spool for the 8 1/4" (1973)? Currently a non sure-grip 3.23 r&p. I guess I can weld the spiders but don't the welds eventually break ? I do have a sure-grip that I could add. Have never shimmed a rear to be locked ,but willing to learn. What's the best way to go ?? Running on dirt 5/8 mile.
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Old 02-10-2005, 10:53 PM
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cageman cageman is offline
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I would weld it and just check it once in a while. just jack the car up and grab one wheel and rock it back and forth, and watch the other wheel, if it isnt momentarily going the same direction when you do it, Id pop the cover and check it, It was probabaly time to change the grease anyways!
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Old 02-10-2005, 11:25 PM
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I ran a welded 8 1/4 with a 3:91 ratio on the dirt last year and had no breakage issues.
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  #4  
Old 02-10-2005, 11:45 PM
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Biggrin

I run both 1/4 and 3/4 welded on dirt for years without any problems. A full spool would mean less rotating mass though.
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Old 02-11-2005, 09:40 PM
Dart14 Dart14 is offline
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I believe the 8 1/4 aftermarket is non-existent. Time to get the welder out and weld those spiders.
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  #6  
Old 02-12-2005, 12:45 PM
mgreen2994 mgreen2994 is offline
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Default 8 1/4 rear

The onlything close to a mini spool for the 8 1/4 that ive found is the powertrax they sell for about 400.00 they work like a locked rear when your going straigh and rachet when you turn, so looks like you better practice your welding maybe if we all called on the same day so one would decide they could make some money building a mini spool for the 8 1/4 lol of course then the track would have to ban them so the chevys could keep up we weld are and it broke what rod do you guys you?
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Old 02-12-2005, 01:47 PM
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I just preheat it with the torch and weld it with wire, that way you dont have to clean all the slag off, seems to work. then I pack it full of old welding gloves to keep the heat in it. Then I check it when its cool for any spatter there might be and clean it good.
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Old 02-12-2005, 03:22 PM
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I have a tig mig combo and I just tig it!
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Old 02-21-2005, 10:41 PM
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If ya got money to burn I found this...

http://www.nationaldrivetrain.com/sh...ml/page23.html

just google "detroit locker" and see what comes up. I don't know how well they work in race cars, but they do work pretty well in off road trucks!

Jay
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  #10  
Old 02-21-2005, 11:15 PM
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Those work real good. NASCAR, Bush abd Trucks use them all the time.
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  #11  
Old 02-21-2005, 11:58 PM
mgreen2994 mgreen2994 is offline
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Default 8 1/4 rear

thats the same as the powertrax i was telling you about only they only run around $ 400.00 I was wondering if they would work on a dirt track car. I'm sure id DWC says they will then they must thanks for the help DWC by the way DWC are rules state NO racket rear ends is that what this is ?
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Old 02-22-2005, 03:12 AM
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yup, ratchet
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  #13  
Old 02-22-2005, 08:34 AM
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Quote:
Originally Posted by mgreen2994
thats the same as the powertrax i was telling you about only they only run around $ 400.00 I was wondering if they would work on a dirt track car. I'm sure id DWC says they will then they must thanks for the help DWC by the way DWC are rules state NO racket rear ends is that what this is ?
Pretty much a ratchet type rear. So I guess your stuck with a sure grip, welded carrier or a spool. The spool would be better and lighter. Never tried a sure grip on dirt, but I have used that welded carrier for many years. Seemed like I always had to spend the money on something else for the car and never got the spool.
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  #14  
Old 02-22-2005, 10:37 AM
mgreen2994 mgreen2994 is offline
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Default 8 1/4 rear

Thanks DWC already was pretty sure about that answer but had to ask lol wish we could buy a spool for the 8 1/4 better get the welder fired up i guess lol thanks
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  #15  
Old 02-22-2005, 11:49 AM
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Yep, it's time to fire up the welder.
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