Skip to content

1964-1977 A-Body LS Swap Transmission Crossmember TH350 TH400 700R4 4L60e 4L80e 6L80/90 8L90

Marsoni M251S
Sale price$199.99
Pay 4 payments of $50.00 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
1964-1977 A-Body LS Swap Transmission Crossmember TH350 TH400 700R4 4L60e 4L80e 6L80/90 8L90Our crossmember is designed off of ICT Billet's LS motor mount plates set in the furthest back location, and works with a variety of transmissions. Fits 1964 1977 A Body Vehicles (Stock, LS, or LT Swap) Heavy Duty Mild Steel Construction Made in the USA Works with Factory 350, 400, 700R4 Transmissions Works with 4L60E, 4L80E, 6L80 90, 8L90 Transmissions Swap Adjustable up to 3" 1. 25" x . 120 Wall Additional Chassis Clearance Light Weight Construction
Easy Shipping

Quick Dispatch:

Your 1964-1977 A-Body LS Swap Transmission Crossmember TH350 TH400 700R4 4L60e 4L80e 6L80/90 8L90 orders ship within 1-2 business days.

Delivery Options:

  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your 1964-1977 A-Body LS Swap Transmission Crossmember TH350 TH400 700R4 4L60e 4L80e 6L80/90 8L90 ships.

Need Help?
Questions about 1964-1977 A-Body LS Swap Transmission Crossmember TH350 TH400 700R4 4L60e 4L80e 6L80/90 8L90, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for 1964-1977 A-Body LS Swap Transmission Crossmember TH350 TH400 700R4 4L60e 4L80e 6L80/90 8L90 in your area.

Get Shipping Estimates

Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.0 ★★★★★
Based on 441 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
L
Verified Purchase
Liset lopez
Dallas, US
★★★★★ 5
Recommend
Size: 90 Count (Pack of 1)
Excellent quality supplement. Easy on the stomach and helps with relaxation and sleep. You can really feel the difference. Highly recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026
A
Verified Purchase
Amazon Customer
West Palm Beach, US
★★★★★ 5
Beneficial Sleep Benefits
Size: 90 Count (Pack of 1)
I have just started taking this item and it seems to work. My sleep is better, deeper and I awaken feeling rested. I strongly hope that this item will continue giving me great sleep results! The Magnesium is very beneficial too. I would recommend this supplement! I will purchase again provided it keeps working!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
L
Verified Purchase
lateforthetrain
Louisville, US
★★★★★ 4
Reliable
Size: 90 Count (Pack of 1)
The brand has a good reputation. I prefer to order products with the Thorne brand than others, because of its reputation. The magnesium by Thorne is well worth the price. It is reputable and for sleep it works well. Other health benefits are included so not just for sleep but overall health. Good product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
D
Verified Purchase
Diana E
Pawtucket, US
★★★★★ 5
Great brand great quality
Size: 90 Count (Pack of 1)
I bought this supplement during my pregnancy and absolutely love the quality of Thor supplements. It mainly contains magnesium and I highly recommend this brand. They use the purest ingredients and the effects are truly impressive. Since magnesium can cause side effects I was pleased to find this one didn’t have any for me.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
S
Verified Purchase
Sashi O'Hara
Whiting, US
★★★★★ 5
Great product
Size: 90 Count (Pack of 1)
really does help with sleep and muscle relaxation! 10/10 product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026

recommand products