Venture Fifth-Wheel Landing Gear Internal Parts Diagram & Gearbox Repairs

A fifth-wheel landing-gear motor can drive an external reduction gearbox, which in turn operates the lead leg's internal bevel gears and jack screw. Those are different service assemblies. This guide identifies Venture landing-gear parts, with illustrations and photographs of repair kits, external gearboxes and complete replacement legs. A motor-side gearbox is different from the bevel gears inside the leg.

Fitment scope: the exploded illustration is from Venture's July 2004 900-series documentation. It is an identification aid, not a guarantee that every newer Venture, Lippert, Stromberg Carlson or Pac-Rim leg uses identical internal shafts, bushings or gears. Check the installed leg model, motor-drive layout and stamped numbers.

Venture factory exploded landing-gear parts drawing

The Venture Manufacturing July 2004 parts drawing identifies the individual gear, shaft, bearing and tube components. It shows the 901-40 tube, 1012-03 jack screw, 909-00 12-tooth and 910-00 16-tooth bevel gears, bearings, bushings and pins. The red-labelled rebuild components and distinct lead/follow shaft numbers are visible in the same diagram.

Manufacturer referenceVenture Manufacturing original July 2004 landing-gear factory exploded drawing, numbered 12T and 16T bevel gears, drive shafts and rebuild partsOpen original manufacturer PDF
Original manufacturer drawing: LG Parts Explosion (July 2004). Directly sourced from Venture Mfg. Co., with numbered shafts, gears, tubes, clips and bearings. Open the full factory drawing for high-resolution inspection or if the embedded viewer fails. This is the Venture 900-series reference, not proof of compatibility with every Lippert or Stromberg jack generation.
Do not assume these lead/follow drive shafts interchange: Venture's original drawing labels 913-00 lead and 913-01 follow, but current Lippert 146059 documentation calls 913-01 a lead shaft. Check the original installed jack and the exact manufacturer kit revision before selecting a replacement shaft.
View optional simplified component-orientation sketch
Venture landing gear internal bevel gears and jack screw — historical parts overview New illustration based on a 2004 Venture factory exploded drawing. A screw and jack nut appear on the left, a 16 tooth bevel gear and horizontal drive screw in the middle, a smaller 12 tooth gear and vertical input shaft on the right; related bearing, washer, bushing and retaining part numbers labeled. Not an assembly diagram. 911-10 · jack nut 1012-03 · jack screw 910-00 · 16T gear 909-00 · 12T gear 913-xx · drive shaft Match the lead/follow shaft 907-00 · shim washer 908-00 · bushings Historical part-number orientation only — NOT a safe exploded assembly, pin placement or load-bearing installation drawing
Simplified parts overview using Venture's historical part numbers. For the actual locations and assembly relationship, refer to the original Venture factory exploded cutaway (PDF page 3), including the marked rebuild-kit parts.

Which repair kit belongs to the lead or follow leg?

The original Venture diagram calls the internally serviced components a matched 12-tooth and 16-tooth bevel-gear pair. Current Stromberg Carlson and Lippert offer distinct repair kits for lead and follow leg positions. Kit part numbers and their actual supplied shaft must be confirmed separately; a similar-looking gear tooth count does not verify shaft fitment.

Repair kit Leg position Items identified Purchasing caution
Stromberg Carlson LG-146059 Venture lead leg 12T + 16T gears; shaft, pins, bushings, washers and clip Do not assign to a follow leg or to an unidentified non-Venture leg.
Stromberg Carlson LG-146060 Venture follow leg 12T + 16T gears; follow shaft, pins, bushings, washers and clip Follow-leg kit, not the same kit as LG-146059.
Lippert 146059 Compatible Lippert / Venture lead leg Shaft, 12T + 16T gears, bushings, E-clip, pins, shim and thrust washer Current manufacturer listing disagrees with historical shaft number; confirm original leg.
Lippert 146060 Compatible Lippert / Venture follow leg Follow shaft, 12T + 16T gears, bushings, E-clip, pins and shim This follow-leg kit is also described as a lead-leg kit in some product information. Confirm the kit before ordering.
Check the lead and follow parts carefully. The July 2004 Venture manufacturer drawing calls 913-00 the lead shaft and 913-01 the follow shaft. Lippert's current 146059 lead-kit listing instead names 913-01 as its lead shaft. Confirm the original shaft and kit revision with the manufacturer before selecting a replacement. Separately, the NewRVParts Lippert 146060 description incorrectly labels its follow-leg kit a lead-leg kit in one feature line. This part is shown for identification without a purchase link until its description and kit contents are confirmed.

Venture component and shaft identification numbers

These manufacturer numbers identify the components in Venture's exploded drawing. Some parts are not supplied with repair kits 146059 or 146060; compare the required component and original leg position before ordering.

Venture MPN Original item System area What to verify
901-40 Outer jack tube Body / structure Not inside an internal gear-repair kit
902-30 Inner telescoping tube Body / structure Not a bevel gear
1012-03 Acme jack screw Lift screw Not normally replaced by a 146059/146060 gear kit
911-10 Jack nut Lift screw Not included in the normal drive-shaft gear pack
904-00 Thrust washer Bearing stack Listed in Lippert lead kit 146059; verify exact supplied packet
819-04 Thrust bearing Bearing stack Separate from the two bevel gears
905-10 Centering plate Body / structure Shown in the factory drawing
906-10 Thrust channel Body / structure Shown in the factory drawing
908-01 Drive shaft bushing (different reference) Bushing Do not confuse with 908-00 pair
908-00 Drive shaft bushings (two) Bushing Part of current Lippert lead/follow repair-kit descriptions
909-00 12-tooth bevel gear Gear set Smaller gear in the pair
910-00 16-tooth bevel gear Gear set Larger gear in the pair
913-00 Historical lead drive shaft Drive shaft Confirm lead-shaft number against your original Venture leg
913-01 Historical follow drive shaft Drive shaft Confirm follow-shaft number against your original Venture leg
914-10 Top housing cover Housing Not included in these kits
919-00 Retaining E-clip Retention hardware Listed in current Lippert repair kits
920-00 Drive pin Retention hardware Listed in current Lippert repair kits
1020-08 Spirol pin Retention hardware Listed in current Lippert repair kits
907-00 Shim washer Bearing stack Listed in current Lippert repair kits

External reduction gearbox versus internal bevel gears

External landing gear reduction gearbox versus internal leg bevel gear repair kits Two distinct locations. The left panel shows external motor reduction gearbox assembly 179015 or 276602 between motor and drive/lead leg; the right panel illustrates 12 tooth and 16 tooth bevel gear pair within the top of the leg, served by Venture lead or follow leg repair kits. They are not substitute products. Outside the legMotor → reduction gearbox → lead leg179015 / 276602* Inside the leg head12T + 16T bevel gears146059 lead / 146060 follow *Gearbox versions require exact drive and mounting verification; illustration does not establish interchangeability
Different parts of the drive train. A motor-side reduction gearbox should not be substituted for the two bevel gears inside the landing-leg head; they are sold as different assemblies. This is not a replacement or wiring instruction.

Which 179015 or 276602 gearbox is listed?

Stromberg Carlson currently offers LG-179015 as a reduction gearbox. NewRVParts also lists Lippert-branded 179015 and 276602 gearboxes. Lippert's historical parts references associate 276602 with later gearbox replacement applications; the exact housing material, mounting orientation, shaft shape and kit revision should be checked before substituting one boxed item for another.

Exact store product Listed appearance Fitment verification
Stromberg Carlson LG-179015 Black aluminum Stromberg markets this MPN as the external reduction gearbox for its compatible systems.
Lippert 179015 Black; confirm the original housing Lippert-branded 179015 is a separate catalog product; verify drive orientation and exact original housing.
Lippert 276602 Gray aluminum Lippert lists this as a gearbox replacement; historical Lippert charts reference it alongside 179015. Substitution not assumed.

Venture repair kits, gearboxes and replacement legs

The photographs separate internal bevel-gear repair kits from external motor gearboxes and complete landing legs. If the screw, tube or housing is damaged, a complete replacement leg may be necessary.

Repair kits

Stromberg Carlson LG-146059 Venture lead-leg internal bevel-gear repair kitStromberg Carlson LG-146059Venture lead-leg internal bevel-gear repair kitView this exact NewRVParts listingStromberg Carlson LG-146060 Venture follow-leg internal bevel-gear repair kitStromberg Carlson LG-146060Venture follow-leg internal bevel-gear repair kitView this exact NewRVParts listingLippert 146059 Lead-leg repair kit for a compatible Lippert landing-gear assemblyLippert 146059Lead-leg repair kit for a compatible Lippert landing-gear assemblyView this exact NewRVParts listing

External gearboxes

Stromberg Carlson LG-179015 Black aluminum landing-gear reduction gearboxStromberg Carlson LG-179015Black aluminum landing-gear reduction gearboxView this exact NewRVParts listingLippert 179015 Black replacement landing-gear gearboxLippert 179015Black replacement landing-gear gearboxView this exact NewRVParts listingLippert 276602 Gray aluminum replacement landing-gear gearboxLippert 276602Gray aluminum replacement landing-gear gearboxView this exact NewRVParts listing

Complete legs

Stromberg Carlson LG-179013 29½-inch complete lead-leg assembly (not an internal repair kit)Stromberg Carlson LG-17901329½-inch complete lead-leg assembly (not an internal repair kit)View this exact NewRVParts listingStromberg Carlson LG-179014 29½-inch complete follow-leg assembly (not an internal repair kit)Stromberg Carlson LG-17901429½-inch complete follow-leg assembly (not an internal repair kit)View this exact NewRVParts listing

When the internal repair kit may not be enough

A stripped internal gear, a damaged jack screw or nut, a broken housing, a seized bearing, a failed motor reduction gearbox and a disconnected cross shaft require different parts. These symptoms can overlap. Confirm the actual failure with the trailer safely supported under the RV manufacturer's service procedure. A broken 1012-03 screw or 911-10 nut is not repaired simply by swapping a 12-tooth and 16-tooth gear pair.

If the entire 29½-inch lead leg requires replacement, NewRVParts has LG-179013; for the equivalent-length follow leg, see LG-179014. Confirm actual frame brackets and that the leg is not the 33½-inch version before purchasing.

Venture and Stromberg Carlson manufacturer documentation

Venture 900-series original exploded leg drawing (PDF, page 3) Stromberg Carlson 2026 landing-gear replacement parts catalog (PDF) Stromberg complete landing gear installation/parts manual (PDF)

Safety: these diagrams identify components, not a gear rebuilding sequence or a substitute for trailer support equipment. Never disassemble loaded jacks, adjust drop-leg pins under load, disconnect a motor while the trailer is supported only by landing gear, or use the landing gear to service tires.

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