BAFRAID
She’s looking like a Super Bee again!!
Advice please. I have been emailing him as it sounds like he is super busy and not able to take phone calls currently.
489 diff question
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Advice please. I have been emailing him as it sounds like he is super busy and not able to take phone calls currently.
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Personally I wouldn’t use a spool on the street. With a spool you essentially have a solid axel with no differential.
BAFRAID
She’s looking like a Super Bee again!!
What would I choose instead?
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The first one of the three choices shown.
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The spool is cheaper in this instance because there is nothing to it; essentially just a solid steel collar that joins both axels together. The sure trac is quite a bit more complicated to make, thus more expensive. I personally have no personal experience with that exact unit, I just know that you need some sort of limited slip differential rather then a spool.
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Dr. Diff is awesome in their awesomeness, by the way. I got my 489 case rebuild kit there. Many of the guys on this site buy there.
65-440
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Truetrac for sure, I won't run anything else unless I need a locker..... screw clutches! Truetrac and plain Jane 80w90 gear oil, done!
451Mopar
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That looks like options to the base configuration? What differential comes standard? Maybe the maybe the clutch type powr-loc ?
I would call to see what options there are. On a street car you don't want a spool, but some type of limited slip or the sure-track?
The helical Sure track can have different torque bias ratios built in. I'm curious what the torque bias ratio of the Dr. Diff Sure-Track is.
I would call to see what options there are. On a street car you don't want a spool, but some type of limited slip or the sure-track?
The helical Sure track can have different torque bias ratios built in. I'm curious what the torque bias ratio of the Dr. Diff Sure-Track is.
65-440
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Pretty sure he doesn't do his own truetracs, just sells the Detroit units....at least that's how it was when I bought one of mine through him.
justcruisin
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Dr Diff sure-trac is his own unit that he has built in bulk lots. Helical gear, but not the same as the truetrac.
65-440
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Just looked it up, that's pretty cool. Might have to try it out on my next diff build!
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