Alley Diesel Performance

03/06/2025

Alley Diesel Performance in Corydon, Iowa is seeking a full-time diesel technician to join our team.

Ideal candidate needs experience with Ford, GM, and Ram. We deal with normal routine maintenance to engine swaps and transmissions. Strong work ethic and willing to learn.

If you are interested or know of someone, call the shop at 641-872-1428 or email us at [email protected]

08/13/2024

Why do you Hot Flush every transmission cooler before you put in a new transmission? This is the reason why to make sure nothing gets in the new transmission

07/30/2024

We are looking to add another full-time mechanic. Will be working on light duty diesel engines, routine maintenance, and accessory addons.
If you are interested in joining our team please send an email to
[email protected]

05/16/2024

Now Hiring - We are looking for a highly motivated diesel technician to join our team!
We work on all Light Duty Diesel (Cummins, Duramax, and Powerstroke), Semi's, Construction and Farm

Must be able to diagnose and repair Light Duty Diesel, Semi's, Construction and Farm equipment. This includes engines, transmissions, steering and suspension, and electrical.

Candidate must have their own tools
Pay will be based on experience.

If you think you're the one, please submit a resume to [email protected]

Thank you,
Cole Alley

05/13/2024

We are currently updating our website. Now you can see our inventory of Randy's Transmissions. Place an order or setup a time to get one of these transmissions installed.
More to come

03/11/2024

Randy’s Transmissions instock ready to install or ship!!!
Stage 1 68RFE 500hp 07.5-18
Stage 2 68RFE 750hp 19+
Stage 2 AS69 1000hp 13-18
Stage 1 48RE 400hp 04.5-07
Stage 2 Allison 725hp 11-16
Stage 2 Allison 725hp 17-19

02/23/2024

Randy’s stage 2 6R140 going in

02/14/2024

Another shipment of transmissions coming in and a Stage 2 68RFE getting installed.
On hand Stage 2 6R140, Stage 1 and 2 68RFE, Stage 1 48RE, Stage 2 AS69, Stage 2 Allison

01/17/2024

Transmissions on the shelf ready to ship or install

10/11/2023

68RFE decided it was done working. Customer took advantage of us being a stocking dealer for Randy’s Transmissions. We had him back to work with very little down time.

Every install we hot flush the transmission coolers to make sure any and all materials are out of the system for the new transmission.

In stock
68RFE for 07.5-18 and 19+
AS69 for 13-18
Allison 11-16
Powerstroke 6R140

08/24/2023

Randy’s Transmissions
Instock ready to install or ship

07.5-18 Cummins 68RFE 07.5-18 stage 1 and 2
19+ Cummins 68RFE Stage 1 and 2
13-18 Cummins AS69 Stage 2
11-16 Duramax Allison Stage 2
17+ Powerstroke 6R140 Stage 2

07/25/2023

Instock
07.5-18 68RFE stage 1 and 2
19+ 68RFE Stage 1 and 2
13-18 AS69 Stage 2
11-16 Allison Stage 2
17+ 6R140 Stage 2

We are pumped to announce that is our newest stocking dealer in the Midwest- located in Corydon, Iowa.
1.5 hours south of Des Moines. We love to see more of our dealers become stocking dealers; it means that you, the truck owner, don’t have to wait as long to get your hands on one of our builds.
Be sure to give them a follow and give them a call if you’re in need of a new transmission.