Frequently Asked Questions

We’re availble and happy to assist you during the following hours:

• Monday – Friday: 8:00 AM – 5:00 PM (Closed for lunch from 12:00 PM – 1:00 PM)
• Saturday & Sunday: Closed We do observe national US holidays throughout the year

Feel free to contact us within these times for support or inquiries regarding our products and services.

At Modern Driveline, we aim to make exchanges as smooth as possible. Please contact us by phone or email to make sure the parts you received are correct. If a return is required, MDL staff will review and issue an RMA (Return Merchandise Authorization) number with instructions on how to process the return. No items are to be returned to MDL without an RMA.

• Restocking Fees: A minimum 15% restocking fee for returning items with 90 days from purchase may be applied. Items must be in the original packaging and in new, unmodified condition. If an item is returned for warranty, no restocking fee is applied.

• Store Credit Option: If you prefer in-store credit for future purchases, please indicate this on your receipt. An in-house credit will be issued if the item is to be exchanged, or you are not ready to purchase immediately.

• Refund Processing: Refunds (excluding store credits) are applied to the original payment method. Please allow 1-2 billing cycles for the credit to reflect on your statement. If you have closed the account that the purchase was made with, a company check will be issued.

Processing Time:
We typically review and handle returns within a few business days after receiving items. However, due to the complexity of certain products, we may take up to 30 business days to finalize the return. Thank you for your patience.

Order Accuracy Reminder

Please check your order upon delivery and report any discrepancies or damage within 10 days. This ensures we can address issues quickly and avoid additional shipping costs or reporting missing items.

Tremec Transmission Warranty

• Warranty Coverage: All Tremec Transmissions and Tremec-manufactured products come with a 1-year warranty.

• Need Help? Call us at 208-453-8000 for support with your Tremec product. You may be required to complete a warranty form with Tremec. [Read the Tremec Warranty Policy here].

MDL Product Warranty

For other MDL products, we are happy to assist with any warranty concerns. Contact us via:

• Phone: 208-453-9800
• Email: support@moderndriveline.com

What Happens with Warranty Returns?

• All returned items are inspected by either MDL or the manufacturer to confirm any defect in material or workmanship.

• The evaluation process takes approximately 5-10 business days after the receipt of the item.

• Depending on the item and warranty terms, some items need to be sent to the manufacturer directly. MDL branded items that qualify under warranty, we will repair, replace or issue a refund for the purchased price.

Warranty Disclaimer

• MDL guarantees all products are free from defects in materials and workmanship for regular use.

• MDL is not responsible for damages resulting from improper installation, misuse, accidents, or normal wear.

• Limitations: Our warranty covers only product replacement or repair. MDL is not liable for labor costs, installation, or indirect damage such as loss of vehicle use or storage fees.

Payment Methods

We accept:

• Domestic Orders: Visa, Master Card, Discover, AMEX. PayPal, Affirm, Certified bank Checks, and ACH/Wire Transfer.

• International Orders: Credit cards and wire transfers only (PayPal and Affirm unavailable for international orders)

Notice:

USPS service standards for First-Class Mail have changed. Delivery may take up to 5 business days. This could affect the receipt of payments sent by mail.

Order Tracking

• You will receive an invoice and tracking number via email once your order ships.

• Tracking links are available on the website to monitor your shipment via UPS or USPS.

Need Help? E-mail us at support@moderndriveline.com if you need assistance with tracking your order.

Returning an Order

• We aim to make returns easy and hassle-free. Please complete our Returns Merchandise Request form. It can be found here: click here

• Return Window: Items must be returned within 30 days of receiving an RMA number to qualify for a refund or exchange. After 30 days, the RMA will close.

Canceling an Order
To cancel, email us at support@moderndriveline.com or use the Contact Form on our website.

• For urgent cancellations, call us directly at 208-453-9800.

• Orders can be canceled or changed before they are shipped.

We proudly offer a 10% discount on all orders (however transmissions are exempt) to active, and retired, military personnel.

How to Redeem:

• Request the discount via phone or email.

• A copy of your military ID or discharge form (DD-214) or other proof of service may be required.

Thank you for your service!

Carriers and Delivery Options

Parcels up to 150 pounds are shipped with UPS. USPS is also available for smaller packages, and some international shipments.

Processing Time: Most orders ship within 5-7 business days.

Expedited Shipping: Orders must be placed online by 1:00 PM MST or called in by 2:00 PM MST to be shipped the same day.

International Shipping

Yes, we ship internationally by sea or air! We can ship to a freight forward or direct. For us to provide a detailed quote, place provide the shipping address. We can ship to a freight forward or direct. Contact us for a quote.

• Shipping Options: UPS for international orders (USPS unavailable)
• Customs & Fees: Customers are responsible for all applicable duties, taxes, and fees upon delivery.

Note:

Due to changing USPS service standards, mail may take longer to reach you or return to us. Please plan accordingly to avoid delays. Shipment can be delayed due to weather or mechanical failures that are beyond our control.

Pickup Policy

You are welcome to pick up your order in person. You must schedule a pickup during our Caldwell, ID office hours:

• Monday – Friday: 9:00 AM – 4:00 PM (Closed for lunch: 12:00 PM – 1:00 PM) Please Call 208-453-9800 to arrange a local pick-up time or ask your sales person at the time of order.

Pickup Address:
Modern Driveline
4216 Capital Street
Caldwell, ID 83605