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#67316 10/18/2006 11:11 AM
Joined: Mar 2006
Posts: 262
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Shop Shark
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Joined: Mar 2006
Posts: 262
Sorry to ask this, but here goes. I've seen a lot of posts on the T-5 transmission and was just wondering: what is a T-5? Sure seems to very popular, but I don't have any idea what it is. My wife says that I think a Powerglide is "new-fangled"! Thanx for the info.


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#67317 10/18/2006 2:01 PM
Joined: Oct 2005
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To start an answer to your question...it depends on what it's being put into, what your running for an engine, if you are contemplating towing, the Ring & Pinion ratio, the tire diameter you plan to run, and what speed you intend to "cruise".

The most popular T5's are from the mid-80's S10's from V6's with a 1st gear ratio of 3.76 and a final OD ratio of .72. They have 14 splines on the input shaft. These are classified as non-world class (NWC) transmissions and T5's up to 89 were mechanical speedo's, which are preferred. There are also World-Class (WC)T5's from Camaro/Firebirds that require a tailshaft modification to relocate the shift tower. These are differently geared (closer ratio) have a 26 spline input shaft and are normally more expensive to obtain. Most NWC T5's from a j-yard are priced from $150-250 and are identified (year/gear ratios) by a tag mounted on the Driver's side of the transmission. A typical 85 T5 TAG will read 1352-145. The numbers cast into the T5 case do NOT identify it's year or ratios.

There is a wealth of information on T5's in this site and "Inliners" (using the "SEARCH" function)which points out the necessary modifications to install behind a "bolt" and there are numerous folks that have successfully completed the installation.

Be advised that this is not a pure "bolt-on" install and although the modifications are relatively simple, it is not something to rush into without a GOOD DEAL OF RESEARCH.

My T5 install was relatively easy but you must do the modifications as outlined and should pay particular attention to selecting a R&P ratio that let's you maximize your T5's potential and meets your own personal needs.

The T5 opens up the potential of the little Chevy 6 and makes driving a real pleasure. I hope this helps getting you started on your journey.


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#67318 10/18/2006 4:16 PM
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'Bolter
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i put a t-5 in my 54 about a year ago and wish i had done it years ago. btw mine was from 89 s-10. ron


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#67319 10/18/2006 4:50 PM
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Bolter
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use the search here on our site and find a lot of neat stuff

here is one about your question

click here


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