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ACDelco - Automatic Trans (SLP) (3987921)

ACDelco - Automatic Trans (SLP) (3987921)

ACDelco - Automatic Trans (SLP) (3987921)
$ 7.98

Score By Feature

Based on 24 ratings
Delivery
8.46
Giftable
8.67
Packaging
8.27
Customer service
8.24

OveReview Final Score

How Our Score Is Calculated

Product Description

China is the country of origin
7.9 MB is the size of the package. Height 111 cm
There are five inches of height included in the package. Three hundred and thirty-four
There is a nine-inch width to the package. A 144-centimeter length

Questions & Answers

Do you know how many teeth you have?

Part number ends with 2 numbers that indicate the total number of teeth in the part. Each of the 21 teeth has a red tint.

How about a turbo 350 Oldsmobile?

The turbo 350-powered Camaro

Could you please clarify if this is a quantity of one or two?

One was all I bought when I bought it. Two that you don't need for your vehicle, which is two.

Selected User Reviews For ACDelco - Automatic Trans (SLP) (3987921)

What are the reasons for requiring The pros are I had no problems with the part
5/5

Item 26 of Trans TH350. The wheels are 5" in diameter and 3 in diameter. The gear count is 73. Here's some advice The reading declines as the number of teeth increases, and while the reading increases as the number of teeth decreases.
When I was going 60mph, my speedometer said 10 over. A gear with 18 teeth saves 17 percent. The number of teeth has increased to 21, which is fine.

Cons Isn't the signature necessary for the seller to deliver the package? Although I appreciate it when they deliver a $6 part when I am at work, it makes no sense when they send it while Well, at least part of it worked, and the truck is fine now. I'm not mad at all. EDITOR'S NOTE This is now a 5 star review. When I wrote the original review, I was perhaps a little irritated. Nevertheless, my truck was down for an additional day due to the requirement for a sig.

Martha Lane
Martha Lane
| Dec 31, 2020
Would be a great deal if it were the right part? The quality of the part and the fact that I got two for the price were why I gave it five stars
5/5

end, neither one of them worked because they were the wrong part. I didn't return them because it was my mistake, but I do plan on keeping them in case I want to give them away or use them in the future. A transmission dealer gave me the right number of teeth and color of gear I needed. There are a bunch of combinations I could choose from. The rest of the process was easy once I found the right gear.

Zakai Dyer
Zakai Dyer
| Dec 21, 2020
Drive Gear for ACDelco 3987921 speedometer
5/5

I ordered the part, which was fine and works well however, the part goes into a transmission, where only one is used, so I needed to buy two separate packages. As for the other gear, I'll probably never use it, and it's not something that many people would purchase, I found the same item at " Rock Auto ", where I could purchase just one and it was significantly less expensive to ship and receive. As a result, I will probably head to Rock Auto rather than Amazon after this event. Thank you for asking. I don't know if this helps, but it's a start. The Rodgers.

Joyce Jennings
Joyce Jennings
| Jan 15, 2021
It is good that they sent two because they do work
5/5

They work fine and having two of them in the kit is very useful, as my first one fell into the tranny tail piece during installation. There's still a lot of loose material there. There are other people who have done this as well. The reason they come in two packs may be because of that.

Kellan Wilkerson
Kellan Wilkerson
| Mar 19, 2021
Their injector parting lines are too tight in the housing of the speedometer, so they have flash
3/5

The size is too small and the binding is too tight.

Phoebe Sosa
Phoebe Sosa
| Dec 04, 2020
I finally got my speedo to work It is an exact Before installing the installation gear, make sure it is in good working order
5/5
Lawson CHADWICK
Lawson CHADWICK
| Sep 20, 2020
I give it five stars
5/5

I found the part I was looking for. I found it to be the perfect fit for my Muncie four speed.

Karla Good
Karla Good
| Jul 26, 2021
I give it four stars
4/5

The work went well and an extra one was added.

Keilani Wise
Keilani Wise
| Jun 16, 2021

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