63-72 Gen III Motor Mount Conversion Kit (Kit)
Looking to install a late model Generation III engine in your 1963-1972 C Series Truck? Early Classic once again leads the way with our new Generation III Mount Conversion Kit that allows you to bolt in a 1999 or newer 4.8,5.3,5.7, or 6.0 GM engine directly into your engine bay. (Slight frame modification may be required, depending on application).

Automatic Transmission Crossmembers (Each)
Designed to replace the faxtory automatic transmission crossmember for additional clearance or add a automatic to your factory manual transmission 63-72 GM truck. This crossmember is a direct replacement for a turbo 350 or 400, and will also work with a 700r4, 4l60, 4l80, and others, some drilling required. this crossmember works well with our Extreme Drop Crossmember so you can run the exhaust between the frame rails instead of hanging below . Available in raw or satin black powdercoated finish.

Looking to convert your ¾ ton Truck to ½ ton front suspension? We are proud to introduce the only C-20 to C-10 2½" Drop Spindles available on the market. (disc brakes required).
Over the years, we’ve had many customers with C-20 8-lug Trucks that would like to convert over to the better riding C-10 suspension and change their wheels to either a 5-lug or 6-lug bolt pattern. These new Conversion Spindles allow you to upgrade to C-10 front disc brakes on the ’60-’70 model Trucks, and give you the option of 2½" front Drop Spindles for the same price without having to change your tie rods and ball joints.
Several options are available to change the rear suspension and axle as well, and our technical support staff is more than happy to explain the different methods and choices available for each Truck year and model. Give us a call, we’re here to help!

Looking to convert your ¾ ton Truck to ½ ton front suspension? We are proud to introduce the only C-20 to C-10 Stock Height Spindles available on the market. (disc brakes required).
Over the years, we’ve had many customers with C-20 8-lug Trucks that would like to convert over to the better riding C-10 suspension and change their wheels to either a 5-lug or 6-lug bolt pattern. These new conversion spindles allow you to upgrade to C-10 front disc brakes on the ’60-’70 model Trucks without having to change your tie rods and ball joints.
Several options are available to change the rear suspension and axle as well, and our technical support staff is more than happy to explain the different methods and choices available for each truck year and model. Give us a call, we’re here to help!

1963-'69 6-Lug Replacement Axle Shafts (Pair)
The 6-Lug Replacement Axles are a direct replacement for your factory '63-'69 (30 Spline)6-lug set up. These precision machined parts are American-made.

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1963-'69 12-Bolt Rear-End 5-Lug Conversion Axles (Pair)
Converting your 1963-'69(30 Spline) C-10 truck rear end to 5 lugs just got a whole lot easier, thanks to Early Classic's new conversion 5 on 5" bolt pattern axles. These precision machined parts are American-made, and eliminate the need to re-drill your original axle flanges to accept the newer 5-lug wheels.

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1963-'69 (30 Spline) 12-Bolt Rear-End 5-Lug Conversion Axles, Bearings and Seals (Kit)
This kit is a direct replacement for your factory 6-lug setup and includes two 5 on 5" bolt pattern axles along with high quality American-made bearings and seals for a simple, complete installation.

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1970-'72 5-Lug Replacement Axles (Pair)
These are a direct replacement for your factory '70-'72 5-lug 12-bolt 30-Spline setup.
(All Axles are 30-Spline)