Installing Blues Junior Tilt-Back Legs

Click for larger image.

This page is courtesy Billm Audio customer Ben Crouse, who installed tilt-back legs on his Blues Junior and took pictures and measurements. Says Ben, “I hope this is helpful for your readers.  When I went to look for information on how to install these on a BJ I couldn’t find anything out there.”

Ben chose the 14-inch legs for the best fit and a good tilt-back angle. They’re available from Musician’s Friend and other online vendors for around $40. He was able to find a pair on eBay for $35, including shipping.

Click for larger image.

To install these on a BJ you first have to remove the chasis.  You then will need to drill a 3/16″ hole for the leg pivot screw, and a 1/8″ pilot hole for the leg stop screw. (Note: These were the appropriate hole sizes for the hardware that was provided with my leg set.  It would be advisable to check and make sure that the screw sizes haven’t change before drilling these holes.)  The leg pivot screw hole is drilled 4″ down from the top of the cabinet, and 1 3/4″ from the back of the cabinet.  The leg stop pilot hole is drilled 3 1/2″ down from the top of the cabinet, and 3 7/8″ from the back of the cabinet.  The attached photo shows the placement of the kickback legs, and the leg stop.

Each leg has one washer between it and the cabinet, and a washer/lock washer and nut on the inside of the cabinet.

Once the legs are installed, the chassis will have to be slid under the leg pivot screw, and then up and into position, but the screw will not interfere or touch the chassis if it is installed in the location shown.

 

17 Comments

  1. al_john says:

    Well this is a great help, I installed the same 14″ legs 6 months ago and could find no info on where to position legs on the cabinet. As it turns out my install is in exactly the same position. The only difference is the leg stopper, I positioned it so the legs would be perpendicular to the cabinet when extended(just depends how far from the amp you are as to the angle best suited).

    Allan

    • ellsinator says:

      Allan,

      This may be a silly question, but I’m kind of new to this, and I want to make sure I get it right the first time if I’m drilling holes. If I want to make the angle steeper, I move the stopper vertically farther down than 3.5 inches from the top, correct? I don’t move it horizontally at all, just down? Also, If I made it so that the legs could be perpendicular, as you did, would I be able to safely angle it at less steep angles even though the stopper wouldn’t be there to hold it in place?

      I really like the “classiness” of this mod, and I want to do this, rather than buy a stand. However, as I said, I want to make sure and get it right for my needs as well.

      Thanks,

      Seth

      • bill says:

        You should be able to eyeball the stopper and put it the place that works best for you. I haven’t installed legs myself, so can’t offer any additional suggestions.

  2. Eric Bernhardt says:

    Looks great. Thanks for this info.

  3. John V says:

    Did this as well last year and while my exact positionings are slightly different, the result is almost identical. I made one other addition that I consider almost as powerful as the legs: I added large rubber feet on the bottom of the amp. HUGE help both in floor stability, tilt-back sability and being able to set teh amp on TOP of a cabinet. The tiny stock meal sliders leave NO room to set it over a handle. this played a little into the positioning of the tilt-backs as the amp is slightly taller off the floor.

  4. ericb says:

    I made the same, few weeks ago, with very close values for the positioning. At this time I was not aware of this mod. It’s a very useful mod because you hear what you are playing even on a very small stage. I ordered the legs in Thomman (european site) and the kit came with 3 washers for one leg and with the washer/lock in addition. I used two of them and the washer/lock as described above and the third one has been installed with the horizontal chassis screw, this way it prevents the leg from moving toward the front of the amp.
    The only disadvantage I notice, is now I have to remove the legs before removing the chassis, due to the pivot screw located inside, it is not as easy as described. Many thanks for all these mods.

  5. jbmando says:

    I just put a set of tilt-back legs on my NOS. Everything went perfectly. I’m pretty sure the chassis will come out easily with the legs installed. Thanks, Bill.

  6. ellsinator says:

    Hey All,

    Just a heads up. I installed these legs, following these directions, and it didn’t go so well. No trash talk intended, I just want to let everyone know. I have a 2006 Blues Junior. I first installed them EXACTLY to the measurements given. When I went to put the chasis back on, it wouldn’t work. No matter what angle I took, it bumped against the inside screw, nut, & washers well before it would go back into its proper place. The only way to get the chasis in was to move the legs and the stoppers. I moved them another 3/4″ towards the front of the cabinet and this allowed just barely enough room for the chasis to slide into place.

    I am now left with two extra drill holes on both sides of my favorite amp, which I am none too happy about. Fortunately, they are covered up by the legs when being used, and I have a cover for the amp when I take it out, but I’m going to have to figure out a way to fill these holes and spot repair the tolex. Bill, do you have any ideas for me?

    Thanks for listening.

    Seth

    • bill says:

      To repair the Tolex, fill the holes with appropriately-sized dowels. Cut plugs from some of the excess Tolex inside the cab or inside the back panel. Trim it to fit your holes, glue in place. It won’t be perfect, but it will be OK. A black vinyl repair kit may further help you fill and smooth the gap between the patch and the cab covering.

    • MK says:

      Thanks for the heads up! From eyeballing it, I was thinking I would move the legs forward to avoid getting in the way of the chassis, and your experience confirmed it. Why struggle? The only reason I can see for putting them so far back is to avoid the legs hitting the head of the chassis bolt, when swiveling them — but this is not a major problem. I used two washers as spacers between the legs and the cabinet, and that provided just enough clearance for the legs to move over the head of the chassis bolt. If it hadn’t, I could have used a third washer, or replaced the side chassis bolts with the beveled head type to make them flush with the cabinet.

      I ended up just aligning the leg bolt holes with the chassis bolt holes, so my legs are inset 2 11/16 inches instead of 1 3/4 . In my opinion, it makes no sense to position the stops until you get the legs attached, that way you can set the exact angle that works the best for you.

      Another tip — you do not need to remove the back panel. If you take out the four chassis bolts (two on the side, two on the top), you can lift the chassis out with the back panel still attached — at least on a Blues JR III.

      — MK

  7. JorisFun says:

    Hi,

    Just put on the tilt-back legs on my BJII (I guess, build in 2003).
    There was really no need to take out the chassis, I only took it out to protect the goodies from drill dust.

    Please follow MK’s tip (above): put on the legs, get your BJ in the desired position THEN put in the stops.

    The measurements given at the top tilted the amp too much for my taste. So, two extra small holes, not a disaster, just unnecessary.
    Finally, a big cheer for Bill for this website, the knowledge and… the mods!

    Jorisfun

  8. PansORama says:

    Hi. Would installing the original aftermarket Fender 14” tilt back legs void the warranty? Just got my Blues Jr iii and I would not like to risk that…

    Thanks

    • bill says:

      I’m pretty sure that tilt-back legs would not void the warranty. Fender mostly cares about what goes on inside the amp, not what you do to the cabinet.

  9. PansORama says:

    Just ordered a set of 14” legs, tnx 😉

  10. liljoey says:

    hi bill what to do if you have permanent casters on the bottom of the amp they are about 2 to 3 inch wheels thanks joe

    • bill says:

      I don’t think wheels and legs work together. I would remove the wheels and put on furniture pads to cover the holes. The amp isn’t all that heavy.