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Old 04-03-2012, 07:41 AM
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Another protouring part that wasn't properly tested. Imagine that. I'd say a refund is in order.

The vent location is likely the cause of the 10psi blow off valve. A little pressure is good to help the tailshaft/input shaft seals.

I wonder if you could decrease the orfice size that feeds the shifter mechanism with oil? Some type of a rubber plug with a small hole would probably work.
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Last edited by Vegas69; 04-03-2012 at 07:46 AM.
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Old 04-03-2012, 09:35 AM
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Originally Posted by Vegas69 View Post
Another protouring part that wasn't properly tested. Imagine that. I'd say a refund is in order.

The vent location is likely the cause of the 10psi blow off valve. A little pressure is good to help the tailshaft/input shaft seals.

I wonder if you could decrease the orfice size that feeds the shifter mechanism with oil? Some type of a rubber plug with a small hole would probably work.
There's probably a logical engineering reason for Tremec isolating the shift mechanism from the case.

I cut out a piece of UniFilter filter foam and fit it to see if that would be an effective baffle that would still wick lubricant but the shift-pin's range of movement pulls the dense foam away from the perimeter. An open fuel cell type foam compressed into the area might work. Needs to be a material that won't disintegrate and fall into the grinder below though.

I just got off the phone with Jim Goodlad and he is very genuine and has extended options that already leave me 100% satisfied.......you can't ask for more than that from a supplier.

It could be something as simple as a defective vent cap on the vent line. Maybe an old skool fix like tossing the vent cap and zip-tying some filter foam on the end of the line is the simple fix?

Appears they've only had a few with leak issues out of approximately 2000 on the market.

I might devise some a hook up for a radiator pressure tester as see what happens on the line and trans case.
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Old 04-03-2012, 08:48 PM
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Built this setup tonight with a Schrader valve behind the guage and put air to the case to check venting. The case would only allow about 2.5 psi of pressure at a peak and the vent sounded like it was flowing fine. 10 psi doesn't appear to be accurate info.



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Old 04-08-2012, 09:20 AM
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Originally Posted by Sieg View Post
Built this setup tonight with a Schrader valve behind the guage and put air to the case to check venting. The case would only allow about 2.5 psi of pressure at a peak and the vent sounded like it was flowing fine. 10 psi doesn't appear to be accurate info.



That's gonna make it tough to shift brother. That does take care of the leak though.
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Old 04-08-2012, 02:56 PM
Roberts68 Roberts68 is offline
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4I haven't made any purchase yet but have been talking to American Powertrain and Hurst quite a bit lately. Unfortunately the AP website had to change rather abruptly as the heresay I got was that their old website was being "held hostage" in a manner of speaking by a prior webmaster. Needless to say the new one is incomplete.

The White Lightning from AP is listed at $269-299 depending on offset options.

As an upgrade it is $150-200 more than the stock shifter depending upon what the rest of your kit includes.

Last edited by Roberts68; 04-08-2012 at 03:02 PM. Reason: rephrase about American Powertrains website
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Old 04-08-2012, 03:05 PM
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I haven't made any purchase yet but have been talking to American Powertrain and Hurst quite a bit lately. Unfortunately their website had to change rather abruptly as the heresay I got was that their old website was being "held hostage" in a manner of speaking by a prior webmaster. Needless to say the new one is incomplete.

The White Lightning from AP is listed at $269-299 depending on offset options.

As an upgrade it is $150-200 more than the stock shifter depending upon what the rest of your kit includes.
I have a White Lightning ordered should be here end of next week (I believe retail is $349 w/ 1" offset). Steering box is in transit from Lee and the Kore3 front brake system is waiting to be bled. I'll give some feedback on the shifter as soon as possible.
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Old 04-08-2012, 03:26 PM
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I have a White Lightning ordered should be here end of next week (I believe retail is $349 w/ 1" offset). Steering box is in transit from Lee and the Kore3 front brake system is waiting to be bled. I'll give some feedback on the shifter as soon as possible.
Sweet! You have got to be looking forward to the results of that batch of upgrades.

Here is the page where I saw those price rangesWhite Lighting for T56 Magnum

The cost of upgrade I mentioned was verbal and varies based on kit value.

Across the board I have been impressed with American Powertrain although I agree their responses have been sluggish. It seems some recent ad campaigns, media exposure and commercials run on Powerblock tv have swamped the sales and tech teams. Which is both good and bad depending on your mindset.
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Old 04-08-2012, 03:00 PM
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That's gonna make it tough to shift brother. That does take care of the leak though.
So you don't like the new air-shifter huh?
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