SKU: 29251854834

AlliLocker

Sale price$97.65 Regular price$108.50
Save 10%

Pay in installments of $27.12 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 20 - Jul 25

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

AlliLockerFits 2001 2015 Allison Equipped GM Trucks Control your torque converter from the palm of your hand with the AlliLocker from Fleece Performance Engineering. The AlliLocker is 100% code free* when used on the track and allows you to bypass the TCM to lock unlock the torque converter on demand. Turn the bypass switch off, and the TCM regains control of the torque converter clutch. *The AlliLocker is NOT desinged to be used on public roadways. If used on

Fits 2001-2015 Allison Equipped GM Trucks

Control your torque converter from the palm of your hand with the AlliLocker™ from Fleece Performance Engineering.

The AlliLocker™ is 100% code free* when used on the track and allows you to bypass the TCM to lock/unlock the torque converter on demand. Turn the bypass switch off, and the TCM regains control of the torque converter clutch.

*The AlliLocker is NOT desinged to be used on public roadways. If used on public roadways, the AlliLocker may set a DTC causing a range shift inhibit. This can typically be cleared by a key cycle. When used on the sled pull or drag race track, where there is only one lock event, the AlliLocker will not cause a range shift inhibit.

Operation

 

State

Function

 

Bypass Switch

   LED OFF (disengaged)

   TCC Operation Controlled by the TCM

   LED ON (engaged)

   TCC Operation Controlled by the Lock Switch

 

Lock Switch

   Latched (Down)

   When Bypass LED is illuminated, TCC is commanded to lock

   Unlatched (Up)

   When Bypass LED is illuminated, TCC is commanded to NOT lock

 

Operation explained in plain English:

The Allilocker™ operation is simple. Leave it in normal mode until you want control of the torque converter clutch (TCC). When you engage bypass mode (left rocker switch) the TCC is completely controlled by the pushbutton on the right (it is a latching pushbutton). If you press it down it locks the TCC and stays locked until you push it again which raises the switch back to the open/unlocked position. 

WARNING: This product is intended for closed course race use only. Do NOT use on public roadways.

WARNING: Always disengage the bypass switch and unlatch the lock switch when not in use.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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
SKU: 29251854834

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.9 ★★★★★
Based on 6 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
E
Verified Purchase
Elizabeth
Belleville, US
★★★★★ 4
Beware the shrinkage
Size: X-Large, Color: Chill
This shirt came looking as expected and the quality was good but it ran a bit small. I had to give it to my dad and it looks great on him!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 1, 2025
J
Verified Purchase
JAVIER MAURICIO RODRIGUEZ QUINTERO
Boise, US
★★★★★ 5
SATISFECHO
Size: Large, Color: Dark Heather
MUY BACANA
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2026
M
Verified Purchase
Morgan
Houston, US
★★★★★ 1
NOT EVEN CLOSE ON SIZE!!
Size: XX-Large, Color: Light Blue
I'm not a small guy...im rather robust like a good Italian dressing..and this shirt is 100% disproportionately wrong! If your thinking 3xl sounds good for the price DONT BUY IT!! At best this is an XL t-shirt with a 3XL tag. I can't return it because I immediately cut tags off my shirts..I know weird right lol. Anyway hopefully you read this and like ex-relationships you 'MOVE-ON'!!!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
D
Verified Purchase
Danny
Draper, US
★★★★★ 5
Great!
Size: Medium, Color: Butter
Great!!!! Great price, fit, soft, durable. Didn’t shrink regular wash. Durable mid weight
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 24, 2026
J
Verified Purchase
Jyh-Meng Wang
Los Angeles, US
★★★★★ 5
Remarkable product from a well known brand
Size: 34W x 32L, Color: Blue Blazer
Very good in quality.Fitting & comfort to wear.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026

recommand products