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Go Back   Dodge Cummins Diesel Forum > 1st Gen. Dodge Cummins 89-93 12V Forums > 89-93 Powertrain
89-93 Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect...NO ADVERTISING

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Old 04-08-2012, 05:03 PM   #1 (permalink)
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1st gen manual transmission swap

I have a 93 4x4 club cab with an automatic transmission. A few days ago I was driving and the transmission started shifting weird and the truck would buck when slowing down. I havent really had the chance to take a look at it nor do I know a whole lot about automatics. I perfer manual transmissions and I have been thinking about swapping from automatic to manual for a while now and if my transmission is shot then I might do so. I have a friend who helped swap transmissions in another 1st gen and said if I chose to swap he would help me. I would like to get get some advice on the swap and possibly a list of what all I would need.
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Old 04-09-2012, 03:22 PM   #2 (permalink)
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go find a complete truck to swap from...
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Old 05-30-2012, 10:38 PM   #3 (permalink)
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Hammer time. Are you saying that the parts aren't easily accessible or what? I'm looking to buy a 1st gen 90 model 350 it's an auto but I wanted a 5speed. These trucks are becoming hard to find!! Thanks in advance
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Old 05-30-2012, 10:46 PM   #4 (permalink)
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Just swap straight to an nv4500 you can buy pretty much the whole kit from advance adapters for under 3k. Too bad you didn't decide this last week I sold everything out of mine for an entire conversion except the t case for 500 bucks
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Old 05-31-2012, 06:50 PM   #5 (permalink)
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im comparing this all to my GETRAG swap.........i spent 1200 bucks on a 5 speed parts truck minus axles(drivetrain only-everything else seen better days) and spent maybe 400 bucks extra to get EVERYTHING else needed to row some gears....Its easier to buy a complete truck with the right bolts,brackets,pedal assy,crossmember(if needed),flywheel+bolts etc.....i had a 727 in my truck and i know both the rag and 727 are the same length give or take and the driveshafts but im not to certain if the o/d trans is the same splines.you may need new shafts worst case scenario...fyi the clutch plastic hydro line from master to slave is discontinued from dodge but there is aftermarket threaded fittings and braided line you can buy from summit...the engine adapter plate may be different on your truck your truck to a getrag and the starter.. this is why im saying get a whole truck because theres just alot of little things that will take longer to attain than just buying a junk truck...if you go for a nv4500 theres going to be more involved
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Old 05-31-2012, 08:06 PM   #6 (permalink)
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Figure out what trans you want to use. Then we can tell you what is needed to be done.

Your auto Tcase is 23 spline. All Dodge stick trans use 29 spline. So that is an area you would need to address.


Here is a link to a G56 swap I did. The G56's are used in 2006 and up Dodge trucks.

G56 swap
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Old 05-31-2012, 08:18 PM   #7 (permalink)
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Quote:
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Figure out what trans you want to use. Then we can tell you what is needed to be done.

Your auto Tcase is 23 spline. All Dodge stick trans use 29 spline. So that is an area you would need to address.


Here is a link to a G56 swap I did. The G56's are used in 2006 and up Dodge trucks.

G56 swap
i was expecting him to find a tcase to go with his manual trans but yes that is correct...and your right we need to know what tranny he wants first
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Old 05-31-2012, 11:08 PM   #8 (permalink)
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Pick a tranny, everything else is allot more simple than you think.

The hydraulics are the same on all 1st gen and 2nd gen trucks

The t-case physically bolts up from any year and any trans. However all manuals have a 29 spline and all autos have a 23 spline. There is a company that makes a 29 spline to 23 spline sleeve so you can use any case behind any year dodge tranny.

The starters are diff from 1st gen to 2nd gen

The engine backing plate is diff from 1st gen to 2nd gen.

That is about all things needed to know that I can think of.
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Old 06-01-2012, 08:37 AM   #9 (permalink)
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Quote:
Originally Posted by RCCUMMINS89 View Post

The hydraulics are the same on all 1st gen and 2nd gen trucks
No they are not. The line and slave cylinder are the same. The push rod on the master cylinder is longer due to the mounting difference between the to generations.
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Old 06-01-2012, 03:20 PM   #10 (permalink)
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No they are not. The line and slave cylinder are the same. The push rod on the master cylinder is longer due to the mounting difference between the to generations.

You sir are correct. The rod underneath the dash to the clutch pedal is a diff. length. Also after a little research in 98-02 the the master cylinder to firewall part I guess is a little different.
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06 Big Horn - Auto

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Old 06-03-2012, 04:42 PM   #11 (permalink)
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look for a fellow named jim clark on ebay. sold me everything, rebuilt nv 4500, south bend clutch & flywheel, bellhousing engine plate, adapter for t case, full of oil and shiped to my door $3,100. only things i had to get was the slave master and stater. slave and master i ordered from rock auto 120$ starter from napa 100$ both for second gen.

i had to cut the rod on the master cylinder and weld in an adjustable rod for extra length.

best investment since i got the truck!!
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Old 06-03-2012, 05:33 PM   #12 (permalink)
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honestly for 3 grand id rather spend some more money and buy the whole truck and just drive that...i swapped my truck because its my toy and i did it on a budget...
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