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Description
B&M Shift Improver Kit - GM TH700R4/4L60 Transmissions - 70239Overview: The B&M Shift Improver kits feature two options to recalibrating your 1982 1993 GM TH700R4 4L60 automatic transmissions. First is the HEAVY DUTY set up, giving you firm positive shifts without loss of driver comfort for improved performance in all street vehicles. This is a great option for performance street driving or towing. The second is our STREET STRIP set up. Be warned, this will deliver firm positive shifts you will feel, along with
Overview:
The B&M® Shift Improver kits™ feature two options to recalibrating your 1982-1993 GM TH700R4/4L60 automatic transmissions. First is the HEAVY DUTY set-up, giving you firm positive shifts without loss of driver comfort for improved performance in all street vehicles. This is a great option for performance street driving or towing. The second is our STREET/STRIP set-up. Be warned, this will deliver firm positive shifts you will feel, along with easily chirping the tires when shifting somewhat aggressively. This setting is recommend for high performance street/strip use, or for competitive events when you want the hardest, quickest shifts possible from a shift improver kit. Note: Does not fit GM TH4L60E (electronic) transmissions.
Features:
- Perfect for Towing or Street/Strip Use
- Eliminates Soft and Sluggish Shift
- Eliminates Shift Overlap
- Provides Crisp Shifts
- Easy Installation
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| 1985 - 1992 | GMC | Safari | ||
| 1987 | GMC | V1500 | ||
| 1987 - 1991 | GMC | V1500 Suburban | ||
| 1987 | GMC | V2500 | ||
| 1987 - 1991 | GMC | V2500 Suburban | ||
| 1987 | Chevrolet | V10 | ||
| 1987 - 1988 | Chevrolet | V10 Suburban | ||
| 1989 - 1991 | Chevrolet | V1500 Suburban | ||
| 1987 | Chevrolet | V20 | ||
| 1987 - 1988 | Chevrolet | V20 Suburban | ||
| 1989 - 1991 | Chevrolet | V2500 Suburban | ||
| 1987 - 1988 | Chevrolet | V30 | ||
| 1989 - 1991 | Chevrolet | V3500 | ||
| 1982 - 1992 | GMC | C1500 | ||
| 1982 - 1992 | GMC | C1500 Suburban | ||
| 1982 - 1992 | GMC | C2500 | ||
| 1982 - 1992 | GMC | C2500 Suburban | ||
| 1982 - 1991 | GMC | C3500 | ||
| 1984 - 1987 | GMC | Caballero | ||
| 1983 - 1992 | GMC | G1500 | ||
| 1983 - 1992 | GMC | G2500 | ||
| 1983 - 1992 | GMC | G3500 | ||
| 1985 - 1988 | GMC | G3500 | Rally | |
| 1985 - 1988 | GMC | G3500 | Rally STX | |
| 1985 - 1988 | GMC | G3500 | Vandura | |
| 1985 - 1988 | GMC | G3500 | Rally Custom | |
| 1985 - 1988 | GMC | G3500 | Magnavan | |
| 1985 - 1988 | GMC | G3500 | Rally Camper Special | |
| 1985 - 1988 | GMC | G3500 | Vandura Special | |
| 1987 - 1991 | GMC | V3500 | ||
| 1992 | GMC | Yukon | ||
| 1991 - 1992 | Oldsmobile | Bravada | ||
| 1984 | Oldsmobile | Cutlass Calais | ||
| 1984 | Oldsmobile | Cutlass Supreme | ||
| 1988 | Oldsmobile | Cutlass Supreme | Classic | |
| 1988 | Oldsmobile | Cutlass Supreme | Classic Brougham | |
| 1983 - 1986 | Pontiac | Bonneville | ||
| 1983 - 1993 | Pontiac | Firebird | ||
| 1989 | Pontiac | Firebird | Base | |
| 1989 | Pontiac | Firebird | Formula | |
| 1989 | Pontiac | Firebird | Trans Am | |
| 1989 | Pontiac | Firebird | Trans Am GTA | |
| 1983 - 1986 | Pontiac | Grand Prix | ||
| 1983 - 1986 | Pontiac | Parisienne | ||
| 1988 | Pontiac | Safari | ||
| 1988 - 1992 | Oldsmobile | Custom Cruiser | ||
| 1982 - 1986 | Chevrolet | K5 Blazer | ||
| 1987 - 1992 | Chevrolet | Blazer | ||
| 1982 - 1986 | Chevrolet | C10 | ||
| 1982 - 1986 | Chevrolet | C10 Suburban | ||
| 1990 - 1992 | Chevrolet | C1500 | Cheyenne | |
| 1990 - 1992 | Chevrolet | C1500 | Scottsdale | |
| 1990 - 1992 | Chevrolet | C1500 | Silverado | |
| 1990 - 1992 | Chevrolet | C1500 | WT | |
| 1988 - 1989 | Chevrolet | C1500 | ||
| 1992 | Chevrolet | C1500 Suburban | ||
| 1982 - 1986 | Chevrolet | C20 | ||
| 1982 - 1986 | Chevrolet | C20 Suburban | ||
| 1988 - 1992 | Chevrolet | C2500 | ||
| 1992 | Chevrolet | C2500 Suburban | ||
| 1982 - 1986 | Chevrolet | C30 | ||
| 1988 - 1990 | Chevrolet | C3500 | ||
| 1983 - 1993 | Chevrolet | Camaro | ||
| 1982 - 1993 | Chevrolet | Caprice | ||
| 1985 - 1992 | Chevrolet | Caprice | Classic | |
| 1991 - 1992 | Chevrolet | Caprice | Classic LTZ | |
| 1982 - 1989 | Chevrolet | Corvette | ||
| 1990 - 1993 | Chevrolet | Corvette | Base | |
| 1993 | Chevrolet | Corvette | 40th Anniversary Edition | |
| 1988 | Buick | Electra | Estate Wagon | |
| 1988 | Buick | LeSabre | Estate Wagon | |
| 1984 | Buick | Regal | ||
| 1982 - 1987 | Chevrolet | El Camino | ||
| 1983 - 1992 | Chevrolet | G10 | ||
| 1983 - 1992 | Chevrolet | G20 | ||
| 1983 - 1992 | Chevrolet | G30 | ||
| 1982 - 1985 | Chevrolet | Impala | ||
| 1982 - 1986 | Chevrolet | K10 | ||
| 1983 | Chevrolet | K10 | Custom | |
| 1983 | Chevrolet | K10 | Scottsdale | |
| 1983 | Chevrolet | K10 | Silverado | |
| 1982 - 1986 | Chevrolet | K10 Suburban | ||
| 1988 - 1992 | Chevrolet | K1500 | ||
| 1992 | Chevrolet | K1500 Suburban | ||
| 1982 - 1986 | Chevrolet | K20 | ||
| 1982 - 1986 | Chevrolet | K20 Suburban | ||
| 1988 - 1992 | Chevrolet | K2500 | ||
| 1992 | Chevrolet | K2500 Suburban | ||
| 1982 - 1986 | Chevrolet | K30 | ||
| 1988 - 1989 | Chevrolet | K3500 | ||
| 1982 - 1983 | Chevrolet | Malibu | ||
| 1982 - 1988 | Chevrolet | Monte Carlo | ||
| 1987 | Chevrolet | R10 | ||
| 1987 - 1988 | Chevrolet | R10 Suburban | ||
| 1989 - 1991 | Chevrolet | R1500 Suburban | ||
| 1988 | Chevrolet | R20 | Cheyenne | |
| 1988 | Chevrolet | R20 | Custom Deluxe | |
| 1988 | Chevrolet | R20 | Scottsdale | |
| 1991 - 1993 | Buick | Roadmaster | ||
| 1991 - 1993 | Buick | Commercial Chassis | ||
| 1993 | Cadillac | Fleetwood | ||
| 1990 - 1992 | Cadillac | Brougham | ||
| 1992 - 1993 | Cadillac | Commercial Chassis | Brougham | |
| 1985 - 1992 | Chevrolet | Astro | ||
| 1993 | Chevrolet | Blazer | Cheyenne | |
| 1983 - 1991 | GMC | S15 Jimmy | ||
| 1982 - 1992 | GMC | Jimmy | ||
| 1983 - 1990 | GMC | S15 | ||
| 1991 - 1993 | GMC | Sonoma | ||
| 1991 | GMC | Syclone | ||
| 1992 | GMC | Typhoon | ||
| 1988 | Chevrolet | R20 | Silverado | |
| 1987 | Chevrolet | R20 | ||
| 1987 - 1988 | Chevrolet | R20 Suburban | ||
| 1989 | Chevrolet | R2500 | ||
| 1989 - 1991 | Chevrolet | R2500 Suburban | ||
| 1987 - 1988 | Chevrolet | R30 | ||
| 1989 - 1991 | Chevrolet | R3500 | ||
| 1983 - 1992 | Chevrolet | S10 Blazer | ||
| 1983 - 1993 | Chevrolet | S10 | ||
| 1982 - 1992 | GMC | K1500 | ||
| 1982 - 1992 | GMC | K1500 Suburban | ||
| 1982 - 1992 | GMC | K2500 | ||
| 1982 - 1992 | GMC | K2500 Suburban | ||
| 1982 - 1991 | GMC | K3500 | ||
| 1987 | GMC | R1500 | ||
| 1987 - 1991 | GMC | R1500 Suburban | ||
| 1987 - 1989 | GMC | R2500 | ||
| 1987 - 1991 | GMC | R2500 Suburban | ||
| 1987 - 1991 | GMC | R3500 |
Specs:
| Automotive Item Grade | High Performance |
|---|---|
| Brand | B&M |
| California Proposition 65 Chemical Name | Cadmium and cadmium compounds |
| California Proposition 65 Required | Yes |
| Emission Code | 5 |
| Gasket Included | Yes |
| Instructions Included | Yes |
| Manual Control | No |
| Product Type | Automatic Transmission Valve Body Kit |
| Warning | California Proposition 65 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
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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
4.8 ★★★★★
Based on 14 reviews
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Product Reviews
★★★★★ 4
Great read
Format: Kindle
It’s honestly rare to find a book that manages to be both a gripping thriller AND an emotional, hopeful story at the same time, but this one somehow pulled it off.
The story follows Cami, whose entire life is shattered after a brutal home invasion leaves her traumatized and her mother and younger sister dead. Right before everything happened, she had just found out she was pregnant and was preparing to start her future, so watching everything get ripped away from her was absolutely heartbreaking.
Years later, Cami has rebuilt a quiet life for herself and is finally finding some sense of peace… until she receives a phone call telling her there’s a little boy being held captive somewhere in a cabin in the woods.
And that’s when everything starts unraveling again.
The search for the missing child reconnects her with Rex, a former classmate who became an outcast in the aftermath of the original tragedy. After being unfairly viewed as suspicious by the community despite being cleared, Rex lost the scholarship that was supposed to change his future and eventually enlisted in the military. Now he’s this highly skilled tech expert carrying around his own trauma and pain, and honestly I really liked his character.
What I appreciated most about this book was how layered it felt. Underneath the mystery and suspense, it’s really a story about survival, trauma, resilience, and how people try to rebuild themselves after unimaginable loss. Mia did a really good job balancing the darker subject matter with moments of hope and healing without making either side feel too overwhelming.
The opening of this book is INTENSE and immediately hooks you. There were definitely moments where my interest dipped a little in the middle because the pacing shifted and the story started unfolding in a different direction than I expected, so I had to kind of regroup and settle into what the story was trying to do. Some of the execution did not fully work for me all the time, especially with certain reveals being held back for later impact, but overall I was still really invested in uncovering the truth.
I also really liked that even some of the characters I disliked ended up getting endings that felt satisfying in their own way.
The mystery kept me engaged, the emotional elements hit hard, and the characters felt layered and human. It’s dark, tragic, hopeful, suspenseful, and ultimately a story about surviving things that should have destroyed you.
Just definitely check trigger warnings beforehand because this book does contain violence against women and some heavy subject matter.
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Reviewed in the United States on May 16, 2026
★★★★★ 5
Excellent read
Format: Kindle
One of the best books I've ever read, full of surprises. Only complaint is the f bombs, totally unnecessary, adds nothing.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
★★★★★ 3
Mixed feelings about this book
Format: Kindle
I do not recommend this to anyone suffering from trauma. There are some very triggering things in this book and it isn’t a justifiable risk for anyone who has PTSD.
However, if your life has been relatively “normal” and fairly mundane, then you might enjoy reading this book as an escape into a series of exciting events that put the characters through major suffering.
If books got ratings the way movies and TV shows do, I would rate it MA (mature audience) or R (restricted audience) for language, violence, sex, and thematic content. Reader discretion advised.
Pros- fast pace, twisty plot, mysteries, surprises, lots of action, hard to put down
Cons- often unrealistic portrayal of how real people would actually act in the various situations in the book, and sometimes the situations themselves felt a bit of a stretch
This was a plot-driven book with one-dimensional characters- “bad guys” predictably did and said horrible things, “good guys” reliably said and did “good” things. Nobody really surprised the reader, even when they did unexpected things, because it was more a matter of getting the full picture and then realizing that their actions were fully consistent with their place in the “good guy” or “bad guy” category.
Sometimes I found myself wondering if the author had any understanding of how trauma affects people. Those I know who suffer from PTSD or CPTSD don’t behave like the traumatized characters in this story. In many ways, it felt like a kind of wishful fantasy of how nice it would be if people who had been severely traumatized could recover in a relatively short time and in a straightforward way. Even taking some time to research how CPTSD and PTSD can affect trauma survivors could have helped the author write more realistic characters. They were overall too successful, healthy, and emotionally consistent, and said and did too many “right” things the “right” way. Conversely, when the perpetrators did things or said things, they were often too horrid and almost cartoonishly villainous.
There were a handful of ambiguous folks who defied being neatly categorized as “bad” or “good” but the central cast of characters were largely a flat and static bunch.
Nobody seemed to grow as a person or overcome any personal flaws, except for a couple of peripheral characters, and that growth happened largely off-page and was revealed at the end of the story rather than showcased as a central aspect of the book.
In terms of pacing and the twistiness of the plot itself, it was very fast-paced and intense. It was a creative story full of mysteries to solve. Many times I couldn’t pull myself away from reading it because I was so curious about how things would unfold and what was really going on.
Overall, I found it to be an interesting read, but the unconvincing way the characters behaved, in light of how real live people respond to trauma, kept taking me out of the story and making me occasionally roll my eyes or shake my head at the cluelessness of the portrayal of traumatized people.
It would require some spoilers to get more specific than that. If you don’t mind shallowly sketched characters who seem to be permanently locked into their “good guy” or “bad guy” identities, and you enjoy fast-paced thrillers with twisty plots and convoluted storylines, this one is worth your time. I wouldn’t recommend it to most of the people I personally know, though, for the reasons I mentioned.
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Reviewed in the United States on October 12, 2025
★★★★★ 4
A high stakes political agenda
Format: Kindle
Cami was about to embark on her college years with her boyfriend when she found out she was pregnant. Worse than that was when she arrived home and was ambushed by two men who had already tied up her mother and younger sister. Knowing nothing good could come from this ordeal Cami planned to escape her captivity.
…
Rex had been running when he saw police activity near Cami’s neighborhood. Concerned for her well-being he went to investigate. He shouldn’t have gotten involved because he became a suspect and now the community looks at him as a dangerous criminal eventhough he was cleared of any wrongdoing. The scholarship program that was supposed to be his escape from this community was revoked so he enlisted in the military.
…
Mia Sheridan certainly knows her way around a good emotional read. Trauma of this magnitude can only be explained by a seasoned writer. I appreciated this well thought out storyline. The writing was strong, yet I still found myself not completely invested. There were high points and low points where my interest would waver depending upon the content. This started off with an intense scene that I thought would carry over the entirety of the story. The story had a shift that disrupted the pace. I had to regroup my thoughts. The content was tragic and while I appreciated the concept I didn’t like the execution in certain places. There were many layers to this story that were kept from the reader to serve a purpose later on. Overall, The Fix was a book about survival and how women are capable of greatness.
…
The Fix offers a balance of tragedy with hope not pushing too much in either direction. The dark balances with the light carving the way towards a future filled with happiness.
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Reviewed in the United States on October 27, 2025
★★★★★ 5
Great read...
Format: Kindle
Couldn't put this down. Characters are relatable and the plot twists keep you guessing through out the story. And who doesn't love a happy ending...?!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026