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🛠️ Upgrade your G-Body drivetrain with confidence and style!
The JEGS Transmission Double-Hump Crossmember is engineered for 1978-1988 GM G-body vehicles equipped with small block Chevy engines. Designed to fit 700-R4, 4L60, and 4L60E transmissions, it features a double-hump design that accommodates dual exhaust upgrades. Constructed from black powder-coated steel, this durable crossmember offers strength, corrosion resistance, and a clean finish—making it an essential upgrade for professional-grade transmission swaps.
| Manufacturer | JEGS |
| UPC | 889944070757 |
| Item Weight | 16 pounds |
| Product Dimensions | 49.6 x 10.1 x 4 inches |
| Item model number | 55566-560601 |
| Manufacturer Part Number | 640601 |
| OEM Part Number | 640601 |
C**S
Cross memeber gbody
Works great
B**L
Perfect fit
79 Malibu G body? or A special? Depending on who you ask. 6.0 Ls swap, 4L60E. Decent welds, strong, no drilling extra holes,no problems at all. Shipped faster then expected, bubble wrapped. Couldn't get any easy'er or better fit.
A**R
Super solid heavy duty frame .
Solid sturdy durable fully welded structure.
C**Y
Great product
Is supposed to put on
Trustpilot
3 weeks ago
2 months ago