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#565418 - May 29th 2012 4:32 pm HELP PLEASE!
River_Rat Offline
veteran

Registered: April 13th 2011 1:37 pm
Posts: 2182
Loc: blountstown FL.
Im looking to swap my 3 speed standard to a 5 speed standard.
I just found one but it was from a 4 cylinder. Its a 89 gmc S-15 with a 2.5. Will this trany hold up to a V8. Ive tried looking online buy i dont know diddly squat about searcing info or how to type it in to find what im lookin for. So any help would be greatly appreceated.
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#565420 - May 29th 2012 4:52 pm Re: HELP PLEASE! [Re: River_Rat]
Wizard78 Offline
Supreme Master

Registered: August 20th 2008 10:14 pm
Posts: 17069
Loc: Virginia
I wouldn't think so,But I'm not sure
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#565442 - May 29th 2012 7:31 pm Re: HELP PLEASE! [Re: River_Rat]
River_Rat Offline
veteran

Registered: April 13th 2011 1:37 pm
Posts: 2182
Loc: blountstown FL.
I know id have to change bell housing but i need to know if the trans will be strong enough
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#565512 - May 30th 2012 6:33 am Re: HELP PLEASE! [Re: River_Rat]
soundhd Offline
addict

Registered: August 14th 2009 10:45 am
Posts: 576
Loc: Ann Arbor, Michigan
I would go on line and search for the "specs" for tat transmission first......I would think it wold not be able to handle the torque and/or horsepower......other option would see if a local hotrod trans shop could "beef" that trans up for you....not that familar with manual transmissions in late model trucks but if they are out there I would go with one that is made to be "mated" with a V8 engine......

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#565531 - May 30th 2012 9:35 am Re: HELP PLEASE! [Re: River_Rat]
River_Rat Offline
veteran

Registered: April 13th 2011 1:37 pm
Posts: 2182
Loc: blountstown FL.
Far as looks goes the T-5 trans looks the same from a 4 banger to aV8. I just located another one from a camaro that was mated to a 2.8 v6. Only prob with a camaro trany is the shifter is at the end of the tail shaft which means i would have to find a S-10 tailshaft to move the shifter forward.
Ive searched all over the web but just cant find what im lookin for as far as info goes
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#565533 - May 30th 2012 10:04 am Re: HELP PLEASE! [Re: River_Rat]
vanatic05 Offline

Vanaholic


Registered: June 02nd 2005 12:00 pm
Posts: 5144
Loc: Auburn IL
Ask Matchstick he did the conversion I believe you have to change tail shaft on transmission using a camaro tailshaft but ask him he can tell you.
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#565561 - May 30th 2012 12:42 pm Re: HELP PLEASE! [Re: River_Rat]
draggnastro Offline
pooh-bah

Registered: May 09th 2006 12:00 pm
Posts: 4460
Loc: Springfield, Illinois
To run a v8 in front of it, you'll need a world class T5, the non-world class trans wont hold up, and the 4 cylinder trans definitely wont. I dont know about the tail shafts, someone else might know more about that. a trans out of a 4.3 V6 truck would probably hold up fine to the I6. You will probably be better off finding one out of an earlier 80's truck that still used a cable clutch unless yours is hydraulic.
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#565584 - May 30th 2012 2:07 pm Re: HELP PLEASE! [Re: River_Rat]
River_Rat Offline
veteran

Registered: April 13th 2011 1:37 pm
Posts: 2182
Loc: blountstown FL.
Well i know i can still use my bell housing with the linkage with a t5. Far as tail shaft, the one from a camaro has the shifter all the way to the rear as were the s10 is more center
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#565593 - May 30th 2012 3:39 pm Re: HELP PLEASE! [Re: River_Rat]
draggnastro Offline
pooh-bah

Registered: May 09th 2006 12:00 pm
Posts: 4460
Loc: Springfield, Illinois
I believe you can put the WC parts into the non-WC truck trans case... Theres a whole thread on it on a camaro forum somewhere i believe
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#565594 - May 30th 2012 3:39 pm Re: HELP PLEASE! [Re: River_Rat]
River_Rat Offline
veteran

Registered: April 13th 2011 1:37 pm
Posts: 2182
Loc: blountstown FL.
I am waiting on a call but i may have found a t5 from a 4.3 astro van
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#565598 - May 30th 2012 4:05 pm Re: HELP PLEASE! [Re: River_Rat]
draggnastro Offline
pooh-bah

Registered: May 09th 2006 12:00 pm
Posts: 4460
Loc: Springfield, Illinois
Its not a WC, but if your not doggin it and keep up on maintenance it should serve you well, make sure to get the offset plate on top of the trans, it moves the shifter to the drivers side and makes it much more comfortable to drive.
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#565613 - May 30th 2012 4:51 pm Re: HELP PLEASE! [Re: River_Rat]
River_Rat Offline
veteran

Registered: April 13th 2011 1:37 pm
Posts: 2182
Loc: blountstown FL.
Im not really worried about being WC or NWC. As long as i can get one from atleast a 4.3 itll hold up. I just wasnt to sure about the ones from the 2.8 and 2.5. Im sure if a s10 or astro with a 4.3 can snatch around loads all day my old straight 6 shouldnt hurt it none.
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#566101 - June 01st 2012 11:58 pm Re: HELP PLEASE! [Re: River_Rat]
matchstickBGV Offline



Registered: January 01st 2008 10:24 am
Posts: 3427
Loc: louisville, ky
I did this exact swap. swapped in a camaro 5 speed. I did not swap to the S-10 shift. It puts the shifter a little far back but it wasn't terrible. The s10 tail shaft would probably keep you from having to cut through the support in the floor that I had to cut through and cap off. We later took that trans and put it in a club members 79 short where it currently resides. The cross support I had to cut in my long wheel base was not in the same place as in the shorty.

My trans came from a camaro/firebird but honestly I never asked if it was from a v8 car. I just bought a clutch, modded my cross member and put it on. I loved it. I was REALLY hard on it and it held up just fine. Alex is rompin on it now. Sometimes ignorance is bliss i suppose.

there is a website called t5swap.com I think. it is the t5 swap authority. helps you identify different versions and stuff. great resource. google it. good luck.
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#566104 - June 02nd 2012 12:09 am Re: HELP PLEASE! [Re: River_Rat]
River_Rat Offline
veteran

Registered: April 13th 2011 1:37 pm
Posts: 2182
Loc: blountstown FL.
Great. I actually just located one from a 87 atro that had the 4.3. Seems like it should have a good shift location kinda like the s-10. Ill check that website out. Thanks
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#566118 - June 02nd 2012 2:19 am Re: HELP PLEASE! [Re: River_Rat]
draggnastro Offline
pooh-bah

Registered: May 09th 2006 12:00 pm
Posts: 4460
Loc: Springfield, Illinois
Sweet! I cant wait to see this done! Can i take it around the block when its in? lol
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#566127 - June 02nd 2012 4:14 am Re: HELP PLEASE! [Re: River_Rat]
River_Rat Offline
veteran

Registered: April 13th 2011 1:37 pm
Posts: 2182
Loc: blountstown FL.
I plan to try and take as many pics as possible when i do it incase anyone else needs to do it.
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#566181 - June 02nd 2012 2:33 pm Re: HELP PLEASE! [Re: River_Rat]
drifter2001 Offline
journeyman

Registered: March 26th 2012 9:56 pm
Posts: 88
Loc: Arkansas
I bought a 4.3 vortec for a service van it was a astro. Ran out of everything couldn't kill that motor for nothing

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#566188 - June 02nd 2012 3:03 pm Re: HELP PLEASE! [Re: River_Rat]
River_Rat Offline
veteran

Registered: April 13th 2011 1:37 pm
Posts: 2182
Loc: blountstown FL.
Im not useing a 4.3 engine, just a 5 speed standard that was behind it.
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#566257 - June 03rd 2012 12:51 am Re: HELP PLEASE! [Re: River_Rat]
matchstickBGV Offline



Registered: January 01st 2008 10:24 am
Posts: 3427
Loc: louisville, ky
I don't know for a fact but I believe the s10 and astro shifter location is the same. Which is great. You'll love the T5. It really adds a ton of in town drivability to the van. plus slammin down to 4th on the highway and passin folks is great unlike with the 3 speed. there ain't any goin down to 2nd. that's just violent.

I have some pictures of how I modified my transmission crossmember and where my shifter came through. that was really all I had to do other than shorten the driveshaft. I think it took about a week to do the swap. My van was an 85 with factory 3 on the floor so it was pretty simple. If I read right you have the same setup.
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#566318 - June 03rd 2012 11:02 am Re: HELP PLEASE! [Re: River_Rat]
River_Rat Offline
veteran

Registered: April 13th 2011 1:37 pm
Posts: 2182
Loc: blountstown FL.
Almost the same. Mine is a 3 speed on the colum but your rite, there aint no droping to second.lol. That motor would jump out and run back home if i did lol
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#566708 - June 05th 2012 7:53 am Re: HELP PLEASE! [Re: River_Rat]
Bullet Offline
old hand

Registered: September 10th 2009 9:14 pm
Posts: 1016
Loc: Bristol, TN
Stay away from the 5 spd from behind 4 bangers. Not necessarily because of whether they will stand up or not but because of the gearing. They work good for 4 bangers but 1st gear is useless behind anything else. It should be a T50 instead of T5, they used the same tranny in late model Vegas and Monzas. The astro unit will work great, especially with the offset shifter.
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#566730 - June 05th 2012 10:12 am Re: HELP PLEASE! [Re: River_Rat]
River_Rat Offline
veteran

Registered: April 13th 2011 1:37 pm
Posts: 2182
Loc: blountstown FL.
i was stayin away from the 4 banger version anyway but my van has a unusual gear ratio for a G10. i may have to change it after putting in the tranny but i hope not. its got a 3.07 rear gear
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#566746 - June 05th 2012 12:12 pm Re: HELP PLEASE! [Re: River_Rat]
draggnastro Offline
pooh-bah

Registered: May 09th 2006 12:00 pm
Posts: 4460
Loc: Springfield, Illinois
3.07 and a 5 speed, that thing oughta turn like 900rpm at 65 lol
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