Sale

Tools› Hand and Other Tools

GForce

Transmission Mount Spacer Block

$34.50 $30.00 Save $4.50

SKU: GF-GMTM-SB2

In Stock
In Stock
Ships by Sep 9
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The G Force GF-GMTM-SB2 is a 2” transmission mount spacer block designed for 1963-2001 GM RWD applications. It is compatible with all GM two-bolt style transmission mounts. This spacer is intended to correct vertical misalignment between the transmission mount and crossmember that can occur during some transmission swaps due to variations in transmissions or motor mounts.
Show original supplier description
The G Force GF-GMTM-SB2 is a 2-inch transmission mount spacer block engineered to address drivetrain geometry issues in 1963-2001 GM Rear-Wheel Drive vehicles. During transmission swaps, variations in transmissions, motor mounts, or crossmembers can lead to a vertical misalignment between the transmission mount and the transmission crossmember. The GF-GMTM-SB2 corrects this by providing a solid 2-inch riser, ensuring proper drivetrain alignment and geometry for performance builders. Constructed from steel with a black powder coat finish, this spacer measures 2 inches in height. Its slots measure 1.50 inches between centers, and the two base holes are 0.50 inches in diameter, also on a 1.50-inch center dimension. Please verify your transmission mount dimensions and hole spacing before purchasing, as this item is non-refundable. Mounting hardware is not included.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandGForce
Part NumberGF-GMTM-SB2
CategoryTools

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

(760) 282-4645 Instagram Google

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy