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Pinion Brakes


 
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kygreenyj
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Joined: 06 Jan 2004
Location: Clovistan, NM

PostPosted: Tue May 25, 2004 10:40 am    Post subject: Pinion Brakes Reply with quote

I noticed in JP their jeep truck is running pinion brakes on their front and rear rockwells, and they pointd out that the breakes had to work less since they were working thru the diff gear ratio. Why are these bad to run on the street, does it make the brakes too strong?
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94 Jeep YJ 3.5 inch lift 33's Tera SYE and CV driveshaft, More Sport Cage, BL/MML, rust

06 Ford Escape Hybrid

03 KLR 650
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Tx Outlaw
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Joined: 05 Jan 2004
Location: Texas

PostPosted: Tue May 25, 2004 5:35 pm    Post subject: Reply with quote

They are hella-strong (will throw you out of the vehicle). You really don't even need power brake system to run them. I'll be running them on the buggy on the rockwell axles. If I were going to run on the street with the same axles, I'd use the disc brake conversions on each wheel - can you say $$$?

Chuck
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kygreenyj
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Joined: 06 Jan 2004
Location: Clovistan, NM

PostPosted: Wed May 26, 2004 4:37 am    Post subject: Reply with quote

would it be possible to break stuf that way? I'd imageing it'd be hard on the R&P
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94 Jeep YJ 3.5 inch lift 33's Tera SYE and CV driveshaft, More Sport Cage, BL/MML, rust

06 Ford Escape Hybrid

03 KLR 650
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Tx Outlaw
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Joined: 05 Jan 2004
Location: Texas

PostPosted: Wed May 26, 2004 6:26 pm    Post subject: Reply with quote

On a regular axle - yes. On a Rockwell - most likely not. The "pinion" on a Rock is about 2.5" thick! Shocked I'll snap some pics of an opened third member for you to see. My rear one is out in the shop opened up cause I just had the carrier welded.
BTW: the axleshafts on these things are around 2" dia. Remember, we're talking about 2.5 ton units, not your ordinary 1/4 to 1 ton stuff. Mr. Green

Chuck
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Tx Outlaw
Member


Joined: 05 Jan 2004
Location: Texas

PostPosted: Wed May 26, 2004 6:58 pm    Post subject: Reply with quote

Here's a view of the ring gear. There's a floppy disc sitting by it for comparison.



and here's a side view with the floppy again.



This unit is for the rear axle, but the front and rear carriers (center chunks) are exactly the same. The front will have a Detroit locker or a selectable one if they come out soon enough.

Oh..... can we say this is Jeep related since it's going under the rear of the YJ buggy project? Finger

Chuck
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kygreenyj
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Joined: 06 Jan 2004
Location: Clovistan, NM

PostPosted: Wed May 26, 2004 8:14 pm    Post subject: Reply with quote

awesome information thanks

someday i'l build some monster with rockwells, someday
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94 Jeep YJ 3.5 inch lift 33's Tera SYE and CV driveshaft, More Sport Cage, BL/MML, rust

06 Ford Escape Hybrid

03 KLR 650
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Tx Outlaw
Member


Joined: 05 Jan 2004
Location: Texas

PostPosted: Thu May 27, 2004 4:15 am    Post subject: Reply with quote

kygreenyj wrote:


someday i'l build some monster with rockwells, someday


Yeah, me too.... Rolling Eyes

Wish I had as much money as dreams......

rofl

Chuck
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