BLD or LSD? - JKowners.com : Jeep Wrangler JK Forum
 
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post #1 of 12 Old 06-29-2011, 08:13 AM Thread Starter
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Exclamation BLD or LSD?

I really don't anything about gears and i'm trying to learn...I have a Dana 30 front end(4.88), I don't do real hardcore offroading just some mud, a lil climbing, not a lot of rocks around here, big rocks anyhow...I've been looking at an LSD but i heard that a BLD would be better...so which do yall think?...
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post #2 of 12 Old 06-29-2011, 08:20 AM
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BLD in the front for sure I would say. Lots of people are running them and seen to be happy.

No person experience in my part though. Just research

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post #3 of 12 Old 06-29-2011, 08:56 AM
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BLD?

What does BLD stand for? I understand it is a locker. Yes this my be a dumb question!
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post #4 of 12 Old 06-29-2011, 10:35 AM
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What does BLD stand for? I understand it is a locker. Yes this my be a dumb question!
Brake Lock Differential

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post #5 of 12 Old 06-29-2011, 11:36 AM
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BLD uses the ABS system to work the brakes to help limp an open differential along. Far from an actual locker.. Unless ya'll are talking about some brand or design also named "BLD"...

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post #6 of 12 Old 06-29-2011, 12:14 PM
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I'm having some work done on mine right now, and i decided to go with a LSD front and rear as most of my driving will be on road.

The only down side that i have seen to the Detroit Truetrac is that you might have to apply a little brake to activate the LSD functionality, but I don't really see that as an issue. The other locker up front i was looking at was an Aussie, they seem really sturdy and work well for the price.

I think this thing is finally coming together. Still Needed: drive shafts, frame mount rails...then done son! For a while...
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post #7 of 12 Old 06-29-2011, 12:23 PM
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Quote:
Originally Posted by koldude1298 View Post
I really don't anything about gears and i'm trying to learn...I have a Dana 30 front end(4.88), I don't do real hardcore offroading just some mud, a lil climbing, not a lot of rocks around here, big rocks anyhow...I've been looking at an LSD but i heard that a BLD would be better...so which do yall think?...
.....I'd stay away from LSD if I were you........
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post #8 of 12 Old 06-29-2011, 12:23 PM
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As I understand it, every 4wd JK has brake lock differential front and rear.

Any open differential can be made to apply some torque to the non-spinning tire by applying some brake, but the BLD feature is supposed to do this for you, and limit the required braking action to the axle with the spinning tire.

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post #9 of 12 Old 08-23-2011, 08:39 AM
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BLD is built into the JK, as someone already said it is an ingenious use of the already in place ABS system. LSD is traction control incorporated into the differential and the hands down winner is Eatons Truetrac gear type LSD.

Interesting BLD explaination from a Chrysler engineer here, a female engineer no less, in a muddy bikini.

http://blog.chryslerllc.com/blog.do?p=entry&id=270
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post #10 of 12 Old 08-23-2011, 09:04 AM
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a Chrysler engineer here, a female engineer no less, in a muddy bikini.
You sir, are a liar.

I went for the bikini, stayed for the article.
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post #11 of 12 Old 08-23-2011, 09:32 AM
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Quote:
Originally Posted by Jollydodger View Post
BLD is built into the JK, as someone already said it is an ingenious use of the already in place ABS system. LSD is traction control incorporated into the differential and the hands down winner is Eatons Truetrac gear type LSD.

Interesting BLD explaination from a Chrysler engineer here, a female engineer no less, in a muddy bikini.

http://blog.chryslerllc.com/blog.do?p=entry&id=270
I didn't see one muddy bikini! You are banned.

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post #12 of 12 Old 08-23-2011, 09:39 AM
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Alright, so it turns out the engineer / author, Loren Trotter is a guy. Now how much do you want to see that bikini shot? Though so.
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