L300 Shocks Options

How much should I tighten the upper mount nut on the Bilstein 24-013369 front shocks? I’m reinstalling the pair I had on my old van and don’t have the instructions anymore and couldn’t find the spec online.
 
Hey all. I've had a tough time fitting shocks to my stock height L300 that are not the Pro Comp 9000 or 3000 series.

I was most interested in fitting Bilstein 4600 series. I've felt the difference they can make in a small Toyota pickup and would love to find some that fit these smaller vans. After much research, I was able to track down the updated part numbers for Bilstein 4600 series that fit the L300 stock height.

Front: Bilstein B46-1332 (24-013321)
Rear: Bilstein B46-1467 (24-014670)

4wheelparts was able to source the fronts in their newer catalog (24-013321) but not the rears. They contacted Bilstein UK for me and discovered that the model that fits the rear has been out of production for 4 years now.

So… Now I have a set of front Bilsteins waiting for me, but I would like to source something else that fits the rears and gives a similar ride quality. (not Pro Comps).

My next best idea is to find some ARB Old Man Emu that fit the rears. Does anyone have or know where to find a part number for those?

OR

Even better… Does anyone have measurements on hand that a 4x4 shop could do some matching with?

Cheers,
Cody
These? https://shoparts.pt/items/details/76bfd3a5-7e3c-440b-b502-047e73303be3
 
We just worked with our mechanic who specializes in alignment, if you're in LA he's truly the best. He has old school training and has completely changed how our van rides.

Simpson Frame Service
959 N Gower St Los Angeles, CA 90038

These are the Bilstein shocks that were fitted to our '91 L300:
Front: 24-013369 (B46-1336)
Rear: 24-017954 (B46-1795 Pajero 91~)

—Cynthia
 
The ideal way to do it would be to have new springs made (or your old ones re-curved) to suit the van's new weight, but no camping buildout stays the same weight forever so...



^ I'd do both of these. That way you can adjust the rear ride height to suit the van's current weight: use the helper springs to get it in the ballpark, and the Monroes for quick adjustments if needed.
That is my plan once spring arrives.
 
We just worked with our mechanic who specializes in alignment, if you're in LA he's truly the best. He has old school training and has completely changed how our van rides.

Simpson Frame Service
959 N Gower St Los Angeles, CA 90038

These are the Bilstein shocks that were fitted to our '91 L300:
Front: 24-013369 (B46-1336)
Rear: 24-017954 (B46-1795 Pajero 91~)

—Cynthia
i believe he has installed your rear shocks upside-down
 
I’ll let GB chime in, but I just replaced my rear’s with the Monroe’s, and I can confirm they've beefed up the design to compensate for some initial problems with the lower mounting nut.

I didn’t take any chances and used the advice here to use blue locktite and I only threaded the lower nut a few turns. So far so good!
 
@Growlerbearnz Old thread, but any input into how the monroe air shocks have held up over time? Thanks!
Mine are still doing fine, even with the weaker lower mounting pin (no extra weld between the pin and shock body). If you don't overtighten the lower bushes the pin should be fine.
The adjustability is great for how I use the van, especially since I installed the onboard compressor.
 
@Growlerbearnz Old thread, but any input into how the monroe air shocks have held up over time? Thanks!
I've just completed 1 year of having these installed and returned from a roundtrip across the US (New York to Oregon and back), and spent the winter months in very cold climate. These have held up great and improved the ride quality significantly from the OEM shocks. For the price, I totally recommend.
 
I've just completed 1 year of having these installed and returned from a roundtrip across the US (New York to Oregon and back), and spent the winter months in very cold climate. These have held up great and improved the ride quality significantly from the OEM shocks. For the price, I totally recommend.
So I kind of take this back, while ride quality has been overall nothing to really complain about (i have Monroes AND Ironman LP4s in the back), i noticed the other day that the left side LP4 had come loose and started rattling. While I was back there fixing things, i decided I should check the PSI of the air shocks and turns out they were basically flat. Admittedly I never thought to check these. I'm guessing it was a very, very slow release of air because i certainly never heard or felt the shocks blow out, and the valves and plastic hoses were still nice and tight... no obvious air leaks when filling back up either......

so my question is for everyone else who has the Monroe's:
How often do you check the PSI and how often do you refill?
 
I check them when I check the tires... every few months or so. And they need air about as frequently (sometimes more, sometimes less).
 
I check them when I check the tires... every few months or so. And they need air about as frequently (sometimes more, sometimes less).
Makes sense.... just one of those things i never thought about. Do you still typically ride around 40psi?
 
Seems like the correct place to add this info. I replaced my '92 4WD stock suspension model's shocks this last weekend.

The fronts are the noted Bilstein 24-013369. These went in without any issues at all. Two large wire tie straps combined allowed me to compress the shock for an easy fit. My replaced shocks were very likely original, and were completely gone. Very little absorbing, bottoming out metal on metal, trash.

as to the rears, I went with the Monroe MA708 air shocks. This install was much more challenging. I would have been completely lost without GB's very clear write-up. As has been noted earlier in this thread, GB's install/replacement involved removing non-OEM shocks that had appropriate top bushings that were reused. On my OEM shocks, there was no way that the top bushings could be reused in the new Monroes.

The top mounting stud on the van has a shouldered bolt. This shoulder measures out at about 5/8 of an inch. I removed the Monroe dogbone style top mount by using a cutoff wheel to remove one side to aid pushing this out without wrecking the Monroe top bushings that would need to be used. Once out, this bushing hole is closer to 1/2 inch, or less. The bushing material is fairly soft. I used a 3/4 inch flat blade wood type drill bit to ream out this hole in the bushing. As the material is soft rubber and not delrin type material, the 3/4 worked well to remove material and let the bushing slide onto the 5/8th shoulder on the mounting stud snugly. Drill and chew a bit, test fit, repeat.

Next problem was that when the shock top bushing was pressed tight on the stud, I only had a mm or two of clearance between the shock body and my frame rail. That seemed a little tight for something that would be moving around some. I ended up shimming the inside of the bushing stud interface with a couple of large metal washers. This gave me a little more clearance between the shock body and frame rail.

As to the air side of the Monroes. I was and am a little skeptical about the "inexpensiveness" of the overall package and long term durability, but they are holding air, and do work as advertised. Thankfully we have others here who have chimed in about them holding up reasonably well under use. When I air them up, they do lift the rear of the van a bit, and do increase stiffness for loads. Besides the usual camping gear in the back, I will be hanging about 125 pounds off additional hitch, rack and electric motorcycle off the back of my van, so I really need this air shock functionality.

I guess my only negative at this point with the Monroes is the plastic schrader valve that comes with the kit. If you have a screw on type air filling device, you will need to exercise due caution so as to not bugger it up. Same with keeping a cap on it to keep road grime out.

Craig
 
Hey gang, looking to go with the Billstein front / Monroe Air rear combo when I replace in the not too distant future. Great info here, and thx. My simple question, is adjusting the air in the Monroes as simple as using the same valve fitting on the compressor as I use for my tires. Do not mind some maintenance around checking/adjusting pressure regularly, just want to make sure I do not need adaptor, etc.
 
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