At a Glance
- SKU: 3500-94-24-D-KIT

Bare 3500 lb trailer axle beam kit with 94" hub face, 4" drop configuration, standard 2.4" axle tube, EZ Lube spindles, and loose spring perches for weld-on installation.
This Lippert 3500 lb bare axle beam kit is built for trailer axle replacement where the original axle uses a 94" hub face, 4" drop beam, standard 2.4" axle tube, and matching 3500 lb spindle configuration. It is commonly used on utility trailers, campers, and light-duty trailer applications where the axle measurements and suspension layout match.
Axle replacement starts with measurement accuracy. The correct hub face, brake flange spacing, spindle style, and spring center setup all matter before the axle is installed.
Compatibility: Designed for 3500 lb trailer axle applications where hub face, spindle dimensions, brake flange spacing, and suspension layout match.
Vehicle / System Fit: Commonly used on utility trailers and campers using compatible 5-lug hubs or 10" drum brake assemblies.
Installation Notes: Verify hub face width, brake flange spacing, bearing references, seal reference, drop orientation, camber direction, and spring center before installation.
Performance Insight: Correct axle geometry helps maintain proper wheel position, brake alignment, suspension tracking, and tire wear under load.
Selling Brand: Lippert axle beam kit sold by R&P Carriages.
Application Reference: Trailer, camper, hub, brake, and axle references in this listing describe compatibility targets where measurements and configuration match.
What This Means: This listing is for a Lippert 3500 lb bare axle beam kit with loose spring perches included.
Before Ordering: Verify axle capacity, hub face, spring center, drop style, spindle dimensions, bearing and seal setup, brake compatibility, and included components before installation.
A bare axle beam is not a complete hub or brake assembly. Reuse or replace hubs, drums, bearings, seals, brakes, and mounting hardware only after confirming they match the spindle and axle configuration.
Replacement axle beam for compatible light-duty trailer, camper, and utility trailer applications.
Configured with a 94" hub face and 4" drop beam for trailers requiring this axle geometry.
Built with the standard 2.4" axle tube size used on many 3500 lb trailer axle setups.
Includes two SP-2375 spring perches for weld-on placement after Spring Center is measured and confirmed.
| Specification | Detail |
|---|---|
| Part Number | 3500-94-24-D-KIT |
| Brand | Lippert |
| Product Type | Bare trailer axle beam kit |
| Axle Capacity | 3500 lb |
| Hub Face | 94" |
| Drop | 4" drop axle beam |
| Axle Tube | Standard 2.4" tube |
| Spindle Style | EZ Lube |
| Brake Flange to Flange | 87.66" |
| Bearing Shoulder to Shoulder | 90.19" |
| Spindle End to End | 98.38" |
| Bearing / Seal Reference | Uses L44649 and L68149 bearings with 10-19 grease seals; bearings and seals are not included. |
| Category | Details |
|---|---|
| Vehicle / System | Compatible trailer axle replacement applications |
| Primary Fit | Trailers requiring a 3500 lb, 94" hub face, 4" drop axle beam with standard 2.4" tube and matching spindle setup. |
| Related Use | Commonly used with compatible 5-lug hubs or 10" drum brake applications where measurements match. |
| Deck Width Reference | Common replacement axle for trailers or campers with approximately 76" to 82" floor deck width; verify the actual axle measurements before ordering. |
| Notes | This -KIT includes loose spring perches. Perches must be measured, positioned, squared, and welded before the axle is placed into service. |
| Quantity | Item |
|---|---|
| 1 | 3500-94-24-D-KIT Lippert 3500 lb bare trailer axle beam – 94" hub face – 2.4" tube – 4" drop – EZ Lube |
| 2 | SP-2375 loose spring perches for 2.4" axle beam |
This -KIT includes the axle beam and loose spring perches / spring seats. The spring perches are included as separate pieces. Included does not mean welded.
Spring perches ship loose by default. They are not welded to the axle tube before shipment unless the customer specifically requests perch welding in the order notes, provides the correct Spring Center measurement, and R&P confirms the weld-on request before the axle ships.
Repetition matters: If the listing says “spring perches included,” that means loose spring perches are included with the kit. It does not mean the spring perches are already installed, welded, or ready for towing.
R&P may weld the spring perches before shipment only when the order clearly gives us the information needed to do it correctly.
Spring Center is the distance from the center of one leaf spring to the center of the opposite leaf spring. This is the measurement used to locate where the spring perches need to be welded on the axle tube.
Use the axle measurement diagram below as a visual reference while confirming axle dimensions and installation details. Spring Center must still be measured center-to-center at the trailer’s leaf springs or existing spring perches.
This image shows a real-world installation problem where loose spring perches were not welded before use and brake wiring was torn out. This is exactly why the axle must not be installed, towed, or placed into service while the spring perches are still loose.
Loose perches can allow the axle to move or rotate out of its intended installed position. That can damage brake wiring, brake components, suspension parts, tires, and the trailer. The perches must be properly welded before road use.
| Question | Answer |
|---|---|
| Are spring perches included in the -KIT? | Yes. The spring perches / spring seats are included as loose parts. |
| Are the spring perches welded on by default? | No. They ship loose by default. |
| Can R&P weld the perches before shipping? | Only if the customer requests it in the order notes, provides the correct Spring Center measurement, and R&P confirms the request before shipment. |
| What measurement is needed for welding? | Spring Center: center of one leaf spring / spring perch to the center of the opposite leaf spring / spring perch. |
| Can the axle be used with loose perches? | No. Do not install, tow, or place the axle in service until the perches are properly welded. |
| What can happen if perches are not welded? | Loose perches can allow the axle to move or rotate, which can damage brake wiring, brake parts, suspension components, tires, and the trailer. |
| Which way does camber face? | If the axle is cambered, the arch goes up in the middle when installed. |
Customers who want R&P to weld the spring perches should put clear instructions in the order notes before checkout.
Have your SKU or manufacturer part number, photos of the original part and mounting, and any critical measurements ready. Capacity, voltage, or bolt pattern can help too.
815-357-3292 · 270 E Jackson St · Seneca, IL 61360
Customer feedback summarized from Google and Yellow Pages. Dates are shown where available.
Ordered trailer repair parts repeatedly; praised fast service, careful packing, and accurate orders.
Found the correct RV keys at a good price with free shipping; the keys worked as expected.
Needed an unusual axle and leaf-spring size; the team listened and helped him sort out the fit.
Praised the OEM and aftermarket selection, discounts, quick shipping, and friendly parts staff.
Got the axle he needed right away, set up with a custom spring perch.
Praised the polite staff and quality welding on a project.
Replacement struts brought a long-used door back to working order.
Had a trailer built to his needs at a fair price, then found parts for two other trailers in stock.
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Received swivel D-rings with backing plates and praised the price, correct order, and service.
The right parts arrived the first time, with fast delivery and helpful staff.
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Reported helpful service and fast shipment to Germany.
Praised a suspension kit, fair pricing, and good parts.
Was pleased with a replacement trailer cord.
Noted dependable service and products across repeat visits.
Said the axle installation fit perfectly and thanked Josh and the crew.
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Received the item as described with very fast shipping and plans to return.
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Was pleased with product quality, quick delivery, and an easy installation.
Was enthusiastic about the products.
Was ready to install the product on every trailer they own.
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Reported that the newly installed parts were working perfectly.
Said things went well, as they had on previous visits.
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Noted good value, careful packing, and fast shipping.
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Reported prompt shipping and said they would buy again.
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Reported a good fit, fair price, accurate listing, and quick shipping.
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Found the right hub covers quickly and got helpful maintenance advice.
Said R&P helped their company get back on the road after an axle problem.
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Received clear help choosing brake assemblies and bearing seals, followed by fast shipping.
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