JEGS
700-R4 Performance Transmission 1984-1991 Chevy V8 Engines 2WD
555-60320
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| Price |
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GM TH700-R4
Transmission Fluid Fill Capacities
JEGS 555-60320 GM 700R4 Performance Automatic Transmission Features:
- Fits 1984-1991 Chevrolet V8 engines (except Corvette)
- Chevy 4-speed overdrive automatic transmission (30-spline Input, 27-spline Output)
- Requires lock-up Torque Converter
- Handles Up To 450 HP
- Firm, Crisp Shifts
- Assembled with Borg Warner single-sided friction plates and collated packs (By combining friction plate and separator technology, each steel plate in the pack serves as a reaction surface. This provides increased active friction surface area and torque capacity compared to conventional double-sided designs of the same volume).
- Includes Corvette Servo and Hardened Sun Shell
- Overall Length: 30 3/4 in.
- Total transmission fluid capacity: 11.5 quarts
- Transmission fluid service capacity: 6 quarts
- Speedometer drive gear and driven gear not included
JEGS 555-60320 GM 700R4 Performance Automatic Transmission Important Notes:
- This JEGS Performance Transmission has gone through rigorous testing to provide you with the best possible replacement transmission
- Here are a few tips to ensure a successful installation
- Follow the manufacturer's instructions thoroughly
- Before installation, flush any old fluid from your system, including transmission lines, oil cooler, and torque converter to remove any contaminants that could harm your new transmission
- When installing your torque converter, follow the instructions carefully to ensure proper fitment into the transmission input shaft and also attaching to your engine. Specific tolerances are required so that you do not damage the front pump in the transmission or the converter.
- If you have any problem installing this transmission, before returning it please call the JEGS technical support line. Our experts may be able to assist you with the proper installation.
FAQ
What does a 700R4 transmission go in?
- The versatile 700R4 transmission is commonly used in various GM vehicles, including Chevy and GMC trucks, as well as performance and classic cars.
What year is the best 700R4 transmission?
- For optimal performance, the 700R4 transmissions manufactured in the late '80s and early '90s are often considered reliable and well-suited for upgrades.
How do I know if I have a 700R4 or 4L60E?
- Check the transmission identification tag or the vehicle's VIN to distinguish between a 700R4 and a 4L60E, as they share a similar appearance but have distinct features.
How much horsepower can a stock 700R4 handle?
- A stock 700R4 can handle moderate horsepower levels, typically up to 300-350 horsepower, making it suitable for various street and light-performance applications.
Specifications:
Part Type
Product Line
Bellhousing Bolt Pattern
Chevy
Case Material
Aluminum
Dipstick Included
No
Engine Type
V8
First Gear Ratio (Automatic Transmissions)
3.06
Fluid Fill Location
Case
Horsepower
450
Input Spline Quantity
30 in (762 mm)
Lockup
Yes
Package Depth
18.50
Package Height
30.50
Package Width
22.00
Pan Type
Stock
Part Category
Replacement Parts
Part Fitment
Semi Universal
Quantity
Sold individually
Safety Rating
Not SFI Approved
Shift Pattern
Forward
Shipping Weight
136.00
Tailshaft Length
7.5 in (190.5 mm)
Trans Model
TH700-R4
Trans-Brake Included
No
Transmission Drive Type
RWD
Transmission Mfr.
GM
Transmission Mfr. Code
TH700-R4
Valve Body Style
Automatic
Yoke Style
Slip On
60320 is rated
out of
5 by
6.
Rated 5 out of
5
by
Dr num from
Good transmission
I purchased one of these transmissions and overall it's good quality transmission and remanufactured by TCI Incorporated . But be sure that your torque converter is a good match with the correct stall rate for the engine you pairing it with. Additionally, be sure that once you complete your build that you have a good professional transmission shop pre-set the kick down on the engine. Failure to perform any of these will result in catastrophic failure of the 700R4 transmission regardless of it's quality.
Date published: 2023-10-05
Rated 5 out of
5
by
JMan78 from
Great
I bought this tranny installed it with a jegs torque converter too on a blue print 383 with 9.5.1 compression. I also used a proflow4 EFI from edelbrock with no problem. This trans was build very good, shifts good, smooth. I also used jegs trans cooler and oil and everything gravy. Very happy with this set up. I see no problem using it again. Maybe others are not matching the right torque converter with the engine or not setting up the proper shifting points because I have no problems at all.
Date published: 2020-09-02
Rated 4 out of
5
by
78 MC from
Transmission capacity
Please note the product description and instructions both state the capacity of this transmission is 6 quarts. Perhaps it’s the pan it . seems deeper than stock and has a drain plug, but this transmission takes at least 8 quarts. Check your fluid levels for yourself!
Date published: 2023-04-23
Rated 4 out of
5
by
FIREBIRD 80132 from
700R4 REF 555-60320
Will this fit in a pontiac firebird 1991 tpi 5.7 350 ? (L98 engine)
If no why ?
Date published: 2023-01-08
Rated 4 out of
5
by
Beneez Elkie from
Jegs 60320 700R4 Transmission
I have recently installed the Jegs 60320 700R4 transmission in my 71 El Camino replacing my TH 350. The Jegs 700 R4 transmission is a good stock replacement with the overdrive feature. After some fine tuning by my mechanic, it shifts smoothly and operates as it should. I have only put on a few miles, so far, so good. I would highly recommend this transmission for a stock replacement or someone with more of a cruiser versus crusher application. If you are looking for a more aggressive street/strip application, this would not be the transmission for you. It is a good transmission at a very reasonable price. I highly recommend it.
Date published: 2022-08-21
Rated 3 out of
5
by
Riderwestslope from
700r4
Got the transmission in. It works as it should but the shifts seem really soft, virtually stock. I've double-checked the TV cable adjustment and everything is correct. Really wish it had firmer more positive shifts. There was some grease and grime painted over in some of the grooves on the exterior of the transmission where it wasn't thoroughly cleaned during the rebuild process. It was missing the new TV cable and wiring harness when it arrived. Jegs however sent these pieces out with no problem. Time will tell if it holds up. It was nice this transmission didn't require a core return.
Date published: 2019-09-11
Will it bolt up to a 1966 Pontiac GTO 389
The Jegs 555-60320 transmission does not bolt up to a Pontiac engine.
Date published: 2024-04-16
Does this Transmission bolt up properly and operate correctly to the ZZ427 that I bought from JEGS. 700-R4 Performance Transmission 1984-1991 Chevy V8 Engines 2WD Part Number: 555-60320
The Jegs 555-60320 transmission will bolt to a GM ZZ427.
Date published: 2024-04-09
I want to upgrade my 1975 GMC C15 rwd with a 350 engine from a TH350 to the 700r4. I have a mild cam in my engine. Will this fit my truck and do you sell the required modification parts and what torque converter is recommended
The Jegs 555-60320 transmission can be used in a '75 GMC C15. Some modification could be necessary.
Date published: 2024-03-29
Do you have to have a lock up torque converter if you dont have power to the transmission ? Can you use a regular torque converter
The Jegs 555-60320 transmission requires a lock-up converter.
Date published: 2024-02-06
What length Yoke do I need to fit the output shaft? My current one is 5 1/2”. Other options are 6”, 6 3/4”, 8”. Someone told me the 700r4 uses a longer yoke. For a 1980 El Camino.
The Jegs 555-60320 transmission uses a stock length yoke.
Date published: 2024-03-18
Will this fit my 1991 C1500 with the stock 350 v8? Std cab, long bed. Also what torque converter will I need?
The Jegs 555-60320 transmission will fit a '91 C1500 pickup.
Date published: 2023-10-31
Does this transmission need a computer? I had a 1983 Chevrolet suburban that didn’t have a computer only a tv cable.
The Jegs 555-60320 transmission does not require a computer.
Date published: 2023-10-21
Does this fit a 1989 gmc c1500 with a 350
The Jegs 121-84335 transmission will fit an '89 GMC C1500.
Date published: 2023-10-16
Some parts are not legal for use in California or other states with similar laws / regulations
Motor Vehicles
WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.
Tools:
WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.
Electrical Cords
WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.