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Non-FE Discussion Forum / Re: "lunchbox locker" anyone ever used one
« on: May 03, 2020, 11:19:24 AM »
I tried the Lock Right locker, from Powertrax, in my 1990 F250. This is my daily driver with a stock 7.3L IDI diesel and 3.73:1 gears. I figured with my marshmallow diesel, and ho-hum driving style, the Lock Right would be a perfect fit for my traction needs.
First, Powertrax was really good about helping me get this right. I eventually spoke with their in house engineer a bunch of times and I did all kinds of measurements, fittments, and so on in an attempt to get things just right. Everything measured correct.
In the end I tried two different Lock Right lockers, as well as measuring and combining parts from all of them, to get the best fitting, most correctly measured set up.........And it still would not work properly.
I got really good at taking the thing in and out, so I got that going for me.
Finally the engineer admitted that some differentials just don't work well with the Lock Right and my Sterling 10.25" was one of them.
The problem was it acted like a spool, with ZERO differential action, and this made the truck drive...well, not properly.
I think the Lock Right can be a good alternative for getting better traction, and they seem to hold up pretty well based on what other people have experienced, but they are a lesser locker than other alternatives.
I eventually installed a Yukon Grizzly Locker (a more durable Detroit Locker) and have been very pleased with the set up for the last 70,000 miles.
First, Powertrax was really good about helping me get this right. I eventually spoke with their in house engineer a bunch of times and I did all kinds of measurements, fittments, and so on in an attempt to get things just right. Everything measured correct.
In the end I tried two different Lock Right lockers, as well as measuring and combining parts from all of them, to get the best fitting, most correctly measured set up.........And it still would not work properly.
I got really good at taking the thing in and out, so I got that going for me.
Finally the engineer admitted that some differentials just don't work well with the Lock Right and my Sterling 10.25" was one of them.
The problem was it acted like a spool, with ZERO differential action, and this made the truck drive...well, not properly.
I think the Lock Right can be a good alternative for getting better traction, and they seem to hold up pretty well based on what other people have experienced, but they are a lesser locker than other alternatives.
I eventually installed a Yukon Grizzly Locker (a more durable Detroit Locker) and have been very pleased with the set up for the last 70,000 miles.