Collision Repair

Damaged rear driveshaft slip yoke

2023 Ford F-150 Tremor · 5.0L V8

This decision is still open. 2 options are being compared and none has been settled on. Anything already bought is marked with its status below. Where one option is marked as currently leaning, that's a preference at this stage — not a decision.

What this turns on

The rear impact drove the driveshaft forward into the transfer case. It slid back into the slip yoke by hand and looked fine at the time, but on 4 Oct 2026, with the replacement axle under the truck, it would not telescope far enough to reach the pinion flange. The mouth of the female splined yoke is nicked and peened, most likely from running partly engaged. The transfer-case output splines look sound. The label on this shaft's tube reads PL34-4602-HVA.

Corrections

2026-10-14
An earlier version of this entry listed a complete shaft, ML3Z-4602-AE at $307.94, as chosen and ordered. The dealer's VIN check rejected it before it shipped, and the cost comparison it rested on was wrong: the shaft that fits this truck lists at about $800.

Slip yoke and U-joint kit, to rebuild the original shaft

Ford (OEM)

Received

Delivered 13 Oct 2026 — neither part matches the original; question is with Ford

Part number: ML3Z-4841-B slip yoke + ML3Z-4635-AA U-joint kit

Why this option

Once the complete shaft for this truck turned out to list at about $800 rather than $308, rebuilding the original came back ahead on cost: a new slip yoke and a U-joint kit, pressed in. Both are the parts Ford's VIN lookup returns for this truck, and both boxes carry those numbers, so this is not a picking error.

Where it currently stands

Neither matches what came off the truck. The new yoke is a different forging (50829, against the original's 30303), and on a bench test fit the ears of the shaft's weld yoke contact it before the joint reaches full angle. The new U-joint cross is smaller than the original. On 14 Oct 2026 the dealer forwarded the details to Ford, asking which yoke and U-joint are correct for this shaft, or credit toward the complete shaft if neither is serviced separately. No answer yet.

Trade-offs

Rebuilding means pressing U-joints, which the workshop manual allows only as complete kits. Transfer-case fluid gets checked once it is back together, because the yoke spent time out of the case.

What it actually cost

Part: $353.63
Shipping: $42.55
Hardware not included: $2.36
All-in: $398.54

From Stumpf Ford (Appleton, WI) through Ford OEM Parts Online, as shipped on 8 Oct 2026: slip yoke $199.77 and U-joint kit $153.86. Shipping is half of that order's $85.09 freight, shared with the axle parts. Hardware is four flange bolts, N800594-S100, which the manual says to discard and replace. Any credit from Ford or the dealer is not reflected.

Complete one-piece rear driveshaft, 2023-on service part

Ford (OEM)

Researching

Part number: PL3Z-4602-A

Why this option

The shaft the dealer's VIN check returned for this truck on 5 Oct 2026. Its PL3 prefix is consistent with the PL34-4602-HVA label on the original tube, though no published cross-reference ties the two together. As a complete assembly it should arrive with its own slip yoke and U-joints, which would remove the problem of matching those parts to the original shaft.

Where it currently stands

Listed at about $800 from online Ford dealers on 14 Oct 2026, against a $1,113.85 MSRP, plus freight. Not bought. It is the fallback if Ford cannot identify a yoke and U-joint that match the original, and any credit from the request now with Ford would go toward it.

What it actually cost

Not purchased yet — no cost recorded.

Cost, installation notes, and a verdict will be added here once this part is bought and fitted.

Complete one-piece rear driveshaft

Not selected

Ford (OEM)

Part number: ML3Z-4602-AE

Why this option

At $307.94 it came in under a slip yoke plus a U-joint kit, and it was ordered on 4 Oct 2026 for that reason.

Why it wasn't chosen

Wrong shaft for this truck. The dealer's VIN check rejected it on 5 Oct 2026 and the line came off the order before anything shipped. Ford's parts site lists it for 2021–2022 trucks; this one is a 2023. It was ordered from a part number rather than from the VIN, which is the mistake worth not repeating.

What it actually cost

Not purchased yet — no cost recorded.

Cost, installation notes, and a verdict will be added here once this part is bought and fitted.

Journal entries about this decision

Vehicle this applies to

Fitment notes here are specific to this truck's configuration. Check yours before ordering.

Vehicle: 2023 Ford F-150 Tremor
Engine: 5.0L V8
Cab: SuperCrew
Bed: 5.5 ft
Rear axle: 3.73
Factory options: Adaptive cruise, moonroof
Target tire size: 35 in
Tow load: 6,500 lb Airstream
Front end: Gen 3 Raptor-spec conversion — FiberwerX carbon panels, OEM Raptor grille, ADD bumpers
Parts fitment: Gen 3 Raptor spec
Title: Salvage — front-end impact (both front corners), rear impact, both headlights, rear leaf springs