How to service and repair the Rear Crossmember and Front Cross-Member for transmission support on Ford F-350 Super Duty?

A hoisted vehicle in NEUTRAL position is required to start servicing or repairing the transmission support crossmember. Using a heavy-duty transmission jack, support the transmission but keep the fluid pan away from bearing weight. Lock the transmission with a securing strap running over the top of the jack and spread between both sides to avoid damage. Remove the three wire harness retainers during the replacement process where transmission support insulator studs should be discarded and new ones installed. Take off the transmission insulator nuts before removing the nuts and bolt plate from the left-hand transmission support crossmember while discarding the nuts. User should repeat the same process for the right-hand transmission support crossmember and gusset. New transmission support insulator studs should be installed whenever needed before tightening them to 75 Nm (55 lb-ft). Fasten the transmission support crossmember in position before adding left-hand bolt plate with new nuts followed by right-hand crossmember and gusset attachment using new nuts. Begin by installing transmission insulator nuts loosely and finishing with a torque of 90 Nm (66 lb-ft) on the transmission support crossmember-to-frame contact points before jacking up the transmission. Put the transmission insulator nuts under 115 Nm (85 lb-ft) torque before replacing the three wiring harness retainers.

OEM Ford F-350 Super Duty Rear Crossmember

Rear Suspension Crossmember

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9 Rear Crossmembers found

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Ford F-350 Super Duty Rear Crossmember
Part Number: 8C3Z-2510608-A
$247.63 MSRP: $363.63
You Save: $116.00 (32%)
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Product Specifications
- Other Name: Member - Rear Floor Cross; Floor Pan Crossmember, Rear, Rear Rearward
- Position: Rear
- Replaces: F81Z-25109A68-AA, 5C3Z-2510608-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1999-2016 Ford F-350 Super Duty | Cabela's, FX4, Harley-Davidson Edition, King Ranch, Lariat, Platinum, XL, XLT | 10 Cyl 6.8 L GAS, 8 Cyl 5.4 L GAS, 8 Cyl 6.0 L DIESEL, 8 Cyl 6.2 L FLEX, 8 Cyl 6.4 L DIESEL, 8 Cyl 6.7 L DIESEL, 8 Cyl 7.3 L DIESEL
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Ford F-350 Super Duty Rear Crossmember
Part Number: PC3Z-15101W06-A
$29.57 MSRP: $41.95
You Save: $12.38 (30%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Cross Member Assembly - Rear Seat
- Position: Rear
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2023-2024 Ford F-350 Super Duty | King Ranch, Lariat, Limited, Platinum, XL, XLT | 8 Cyl 6.7 L DIESEL, 8 Cyl 6.8 L GAS, 8 Cyl 7.3 L GAS
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Ford F-350 Super Duty Crossmember, Rear
Part Number: PC3Z-99108A08-A
$55.30 MSRP: $80.50
You Save: $25.20 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Member - Rear Floor Cross
- Position: Rear
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2023-2024 Ford F-350 Super Duty | King Ranch, Lariat, Limited, Platinum, XL, XLT | 8 Cyl 6.7 L DIESEL, 8 Cyl 6.8 L GAS, 8 Cyl 7.3 L GAS
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Ford F-350 Super Duty Rear Crossmember
Part Number: PC3Z-15107A94-A
$106.11 MSRP: $154.45
You Save: $48.34 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Cross Member Assembly - Rear Seat
- Position: Rear
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2023-2024 Ford F-350 Super Duty | XL, XLT | 8 Cyl 6.7 L DIESEL, 8 Cyl 6.8 L GAS, 8 Cyl 7.3 L GAS
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Ford F-350 Super Duty Rear Crossmember
Part Number: HC3Z-5K007-A
$78.19 MSRP: $113.82
You Save: $35.63 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Crossmember; Frame Crossmember, Rear
- Position: Rear
- Replaced by: PC3Z-5K007-C
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2017 Ford F-350 Super Duty | King Ranch, Lariat, Platinum, XL, XLT | 8 Cyl 6.2 L FLEX, 8 Cyl 6.7 L DIESEL
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Ford F-350 Super Duty Rear Crossmember
Part Number: FL3Z-16107A94-A
$168.93 MSRP: $245.90
You Save: $76.97 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Cross Member Assembly - Rear Seat; Floor Pan Crossmember, Rear, Rear Forward, Rear Rearward
- Position: Rear
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2017-2024 Ford F-350 Super Duty | King Ranch, Lariat, Limited, Platinum, XL, XLT | 8 Cyl 6.2 L FLEX, 8 Cyl 6.7 L DIESEL, 8 Cyl 6.8 L GAS, 8 Cyl 7.3 L GAS
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Ford F-350 Super Duty Center Crossmember
Part Number: HC3Z-5035-A
$76.84 MSRP: $111.85
You Save: $35.01 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Cross Member Assembly
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2023-2024 Ford F-350 Super Duty | King Ranch, Lariat, Limited, Platinum, XL, XLT | 8 Cyl 6.7 L DIESEL, 8 Cyl 6.8 L GAS, 8 Cyl 7.3 L GAS
View related parts
Ford F-350 Super Duty Center Crossmember, Front
Part Number: FL3Z-1610624-C
$453.18 MSRP: $665.47
You Save: $212.29 (32%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Member Assembly - Cross Center; Crossmember
- Position: Front
- Replaced by: FL3Z-1610624-E
- Replaces: FL3Z-1610624-B, FL3Z-1610624-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2017-2024 Ford F-350 Super Duty | King Ranch, Lariat, Limited, Platinum, XL, XLT | 8 Cyl 6.2 L FLEX, 8 Cyl 6.7 L DIESEL, 8 Cyl 6.8 L GAS, 8 Cyl 7.3 L GAS
View related parts
Ford F-350 Super Duty Rear Crossmember
Part Number: FL3Z-15107A94-A
$198.20 MSRP: $308.72
You Save: $110.52 (36%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Cross Member Assembly - Rear Seat; Floor Pan Crossmember, Rear
- Position: Rear
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2017-2022 Ford F-350 Super Duty | XL, XLT | 8 Cyl 6.2 L FLEX, 8 Cyl 6.7 L DIESEL, 8 Cyl 7.3 L GAS

Ford F-350 Super Duty Rear Crossmember

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Ford F-350 Super Duty Rear Crossmember Parts Questions & Experts Answers

Rear Crossmember
8C3Z-2510608-A
Q: How to service and repair the Rear Crossmember and Front Cross-Member for transmission support on Ford F-350 Super Duty?
A: A hoisted vehicle in NEUTRAL position is required to start servicing or repairing the transmission support crossmember. Using a heavy-duty transmission jack, support the transmission but keep the fluid pan away from bearing weight. Lock the transmission with a securing strap running over the top of the jack and spread between both sides to avoid damage. Remove the three wire harness retainers during the replacement process where transmission support insulator studs should be discarded and new ones installed. Take off the transmission insulator nuts before removing the nuts and bolt plate from the left-hand transmission support crossmember while discarding the nuts. User should repeat the same process for the right-hand transmission support crossmember and gusset. New transmission support insulator studs should be installed whenever needed before tightening them to 75 Nm (55 lb-ft). Fasten the transmission support crossmember in position before adding left-hand bolt plate with new nuts followed by right-hand crossmember and gusset attachment using new nuts. Begin by installing transmission insulator nuts loosely and finishing with a torque of 90 Nm (66 lb-ft) on the transmission support crossmember-to-frame contact points before jacking up the transmission. Put the transmission insulator nuts under 115 Nm (85 lb-ft) torque before replacing the three wiring harness retainers.