1988 astro manual transmission

This five-speed manual gearbox, originally built by Borg-Warner, pulled duty in vehicles built by Detroit's most important '80s and '90s muscle cars, as well as a long list of 4x4s, vans, SUVs, sports coupes, and even trucks during its nearly 30 years on the market. Of course, not every T-5 manual transmission was created equal.

During its extended lifespan there have been many different versions of this venerable five-speed, even when looking within the specific histories of some of the cars that made it famous. With so many T5 options out there, it's no surprise that both the aftermarket and multiple generations of tuners have made this perhaps the most popular five-speed trans in project car history.

When Borg-Warner set out to design the T5 at the beginning of the s it already had a decent foundation in the T-4, a light-duty four-speed transmission used in a number of AMC and Jeep products over the course of the previous decade.

The T5 transmission was built using the same case as the T4, with an overdrive gear added to give it an extra forward speed. All T-5s use a toploader design and feature internal shift linkages, but details such as input and output shafts varied from one manufacturer to the next.

Even casing details and sizing were not consistent across all OEMs, but enterprising builders have been able to identify areas of parts commonality and swap components back and forth between specific T5 designs with reasonable fluidity. For example, early Ford and Chevy T5 V8 transmissions feature the same first gear and overdrive ratios 2.

Starting in the five-speed filtered out to vehicles as diverse as the Mustang, the Chevette, the AMC Eagle line of early four-wheel drive crossovers, and the Jeep CJ. For the most part, the early Ford T5 and Chevy T5 models weren't built with performance in mind, but rather fuel mileage.

The ability to introduce an overdrive gear and thus better space out the four other ratios gave efficiency-starved '80s automakers an ace in the hole, and the relatively modest durability of the transmission rated to between lb-ft and lb-ft of torque, depending on application wasn't much of an issue. Isuzu logo is cast into the drivers side of the case.

This is found only is GM diesel applications and has a different starter position than the unit that goes into the Isuzu vehicles. Aluminum case with top cover, internal single-rail shift with the shifter mounted on the extension housing. Casting numbers on the case, cover or extension housing are or The cluster gear is supported on both ends by cylindrical roller bearings.

The number on the front cluster gear is DK All five synchro rings are brass. Similar physical appearance and is best to remove the top cover in order to distinguish between the two. If you are unable, you can check the number of the front cluster bearing. The number on the front cluster gear bearing is BCE. These similar transmissions have three different designs and designations. Teardown is necessary before ordering rebuild kit as the differences between them are integral.

It is a fully synchronized Overdrive transmission including reverse. It may be identified by a tag attached to the P. The four main supporting bearings in this unit are tapered. Positractions 4 Different types of differentials, whats the difference?

What rear end ratio do I have in my Ford is it posi! Need help finding the right parts for your vehicle? Get a Quick Quote. Cast iron case and extension housing with 4-bolt side cover. Cast iron case and extension housing with 7-bolt side cover.

Cast iron case and extension housing with 9-bolt side cover. Cast iron, top-loaded case with side shift linkage. Cases, extension housings and side covers may be cast iron or aluminum and in any combination thereof.

Aluminum case, extension housing and side cover. Cast iron case, extension housing and side cover. Cast iron case with a flat pan on the bottom and shifter linkage that has one arm on each side of the trans.

Aluminum case, bell housing and extension housing. All aluminum top-loaded transmission with the shifter on the top of the extension housing with an internal single-rail shift linkage. All aluminum top-loaded transmission with shifter on top of the extension housing with internal single-rail shift linkage.

Aluminum end-loaded transmission with integral bell housing. Same transmission as the A with Overdrive that is found in Dodge trucks. Top-loaded, tower-shift "granny-low" transmissions found in light and heavy duty applications. Top-loaded, tower-shift "granny-low" transmissions with cast iron case and a rectangular aluminum top cover. Same design as NP but is fully synchronized. Aluminum end-loaded case with the bearing retainer being cast as part of the main case.

New Image. Mobile Site. Manufacturer and carrier names and logos in the RockAuto catalog are trademarks of their respective companies and are used only to identify their products. All rights reserved. Include vehicles sold in the USA. Include vehicles sold in European Market. Include vehicles sold in Canada. Include vehicles sold in Mexico. Clutch Alignment Tool. Clutch Fork.

Clutch Friction Disc. Clutch Kit. Clutch Master Cylinder. Clutch Master Cylinder Repair Kit. Clutch Pilot Bearing. Clutch Pilot Bushing.