4x4 transmissions to mate to 2.5l 4 cylinder ? - S-10 Forum
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post #1 of 14 Old 04-24-2019, 08:55 PM Thread Starter
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4x4 transmissions to mate to 2.5l 4 cylinder ?

I currently have a 5 speed in my 85 s15 and my 3 and 4 gear are going bad. I'm looking for a replacement 4x4 transmission to put it, anyone know of any? Names of transmissions?

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post #2 of 14 Old 04-24-2019, 11:13 PM
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Re: 4x4 transmissions to mate to 2.5l 4 cylinder ?

A 2.8L has the same bellhousing pattern, should work? A T5, I assume.




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post #3 of 14 Old 05-02-2019, 12:27 AM
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Re: 4x4 transmissions to mate to 2.5l 4 cylinder ?

You will need a 4x4 transmission. They don't have a tail shaft housing and bolt directly to the Xfer case.
I think that you can convert a 2x4 to 4x4 by disassembling the tranny and retro fitting the output shaft. Don't quote me though.


MBP is correct. The 2.5 and 2.8 interchange.
BUT.... if you think a 4x4 (5) speed is rare, try finding a 2.5 (5) speed 4x4. There are a few members who have them, but they are about as common as a white deer.


Good luck finding one used. RARE!

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2) '85 S10, 3.4, 700R4 4x4 stretch cab (Redneck)
3) '90 S10 2.5, 5 speed shorty
4) '91 S10, Built 3.4, 5 speed shorty (Voodoo)
5) '92 S10, 2.5, 5 speed shorty, (Barbie)
6) '92 S10, 2.5 5 speed, Shorty
7) 1979 LUV, Buick 3.8 V6, TH 350 Shorty.
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post #4 of 14 Old 05-02-2019, 12:56 AM
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Re: 4x4 transmissions to mate to 2.5l 4 cylinder ?

Try http://car-part.com/
You might need to make several calls for that one. The yards that list parts on that site rarely keep their inventory up to date. I can usually find what I'm looking for after a half dozen calls or so, more if the part is rare. That site doesn't seem to differentiate which engine, making the list even more difficult to deal with.

The bolt pattern is the same on the Iron Duke and the 2.8L V6, but isn't the starter on the opposite side? Or are they interchangeable? Something in my possibly faulty memory tells me that the bolts will go in, but the starter won't fit properly.

You might be able to use one of the 4.3L V6 ones if you swap bell housing sections.

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post #5 of 14 Old 05-02-2019, 02:32 AM
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Re: 4x4 transmissions to mate to 2.5l 4 cylinder ?

The T5 is also not too bad to fix up if the gears aren't tore up and it's just the synchros. I've had my fair share apart, but getting the preload setup correctly is probably the biggest challenge I faced.
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post #6 of 14 Old 06-26-2019, 11:50 AM
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Re: 4x4 transmissions to mate to 2.5l 4 cylinder ?

Quote:
Originally Posted by Mad Max View Post
You will need a 4x4 transmission. They don't have a tail shaft housing and bolt directly to the Xfer case.
I think that you can convert a 2x4 to 4x4 by disassembling the tranny and retro fitting the output shaft. Don't quote me though.


MBP is correct. The 2.5 and 2.8 interchange.
BUT.... if you think a 4x4 (5) speed is rare, try finding a 2.5 (5) speed 4x4. There are a few members who have them, but they are about as common as a white deer.


Good luck finding one used. RARE!

i still kick my self for destroying my 1987 4x4 2 door blazer. it had a 2.5 4 cyl with a 4 spd manual
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post #7 of 14 Old 06-26-2019, 11:55 AM
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Re: 4x4 transmissions to mate to 2.5l 4 cylinder ?

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Originally Posted by Racer-X View Post
The bolt pattern is the same on the Iron Duke and the 2.8L V6, but isn't the starter on the opposite side? Or are they interchangeable? Something in my possibly faulty memory tells me that the bolts will go in, but the starter won't fit properly.

Think you're right on that one.


You guys want really rare? Pretty sure they made 2.0L 4x4s, both trucks and Blazers.




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post #8 of 14 Old 06-26-2019, 01:57 PM
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Re: 4x4 transmissions to mate to 2.5l 4 cylinder ?

BVase engine in '82 was 1.9L.

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post #9 of 14 Old 06-27-2019, 12:20 AM
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Re: 4x4 transmissions to mate to 2.5l 4 cylinder ?

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Originally Posted by Rhotpursuit View Post
BVase engine in '82 was 1.9L.
And.. you know that was an Isuzu engine.


The 2.0 was an early Chevy Cavalier engine. It wasn't a powerhouse - for sure.

S10 addiction:
1)'82 S10, 383, 700R4, Shorty
2) '85 S10, 3.4, 700R4 4x4 stretch cab (Redneck)
3) '90 S10 2.5, 5 speed shorty
4) '91 S10, Built 3.4, 5 speed shorty (Voodoo)
5) '92 S10, 2.5, 5 speed shorty, (Barbie)
6) '92 S10, 2.5 5 speed, Shorty
7) 1979 LUV, Buick 3.8 V6, TH 350 Shorty.
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post #10 of 14 Old 06-27-2019, 12:34 AM
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Re: 4x4 transmissions to mate to 2.5l 4 cylinder ?

I always wondered why they reworked the 2.0L block so much for two model years, and then ten years later decide that the car's block can just go into the truck.




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post #11 of 14 Old 06-27-2019, 12:41 AM
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Re: 4x4 transmissions to mate to 2.5l 4 cylinder ?

Quote:
Originally Posted by Mad Max View Post
And.. you know that was an Isuzu engine.
Oddly enough...I did know that. It's kinda like those obscure answers on Jeopardy.

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post #12 of 14 Old 06-27-2019, 01:48 AM
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Re: 4x4 transmissions to mate to 2.5l 4 cylinder ?

^^^^

S10 addiction:
1)'82 S10, 383, 700R4, Shorty
2) '85 S10, 3.4, 700R4 4x4 stretch cab (Redneck)
3) '90 S10 2.5, 5 speed shorty
4) '91 S10, Built 3.4, 5 speed shorty (Voodoo)
5) '92 S10, 2.5, 5 speed shorty, (Barbie)
6) '92 S10, 2.5 5 speed, Shorty
7) 1979 LUV, Buick 3.8 V6, TH 350 Shorty.
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post #13 of 14 Old 06-28-2019, 10:16 AM
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Re: 4x4 transmissions to mate to 2.5l 4 cylinder ?

theres a 2.5 4x4 for sale in our local CL
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post #14 of 14 Old 07-09-2019, 07:46 AM
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Re: 4x4 transmissions to mate to 2.5l 4 cylinder ?

Quote:
Originally Posted by Mad Max View Post

MBP is correct. The 2.5 and 2.8 interchange.
BUT.... if you think a 4x4 (5) speed is rare, try finding a 2.5 (5) speed 4x4. There are a few members who have them, but they are about as common as a white deer.


Good luck finding one used. RARE!
About as rare a 2.5L Blazers of any kind. Guy I used to work with back in the early 90s had an 87 Iron Duke equipped Blazer. Vinyl seats. No factory air....I remember he used to drive it with the back window open. Not a pleasant ride in the Alabama heat. I have never seen a 4x4 2.5 S truck though, I gotta admit.

Quote:
Originally Posted by itsmejwl41085 View Post
i still kick my self for destroying my 1987 4x4 2 door blazer. it had a 2.5 4 cyl with a 4 spd manual
Wow... this one was a 2.5 2x4 Blazer that I knew of. I haven't seen one in 25 years probably. All the old Blazers here in Alabama are 2.8L V6. To ever see even a pickup with the 2.0 is really rare. 83hp.... I bet with 4x4, the performance was "stunning"....

California apparently used the 1.9 too. But the best has gotta be he diesel option.... 58hp!! hahahaha omg!



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Last edited by jimmykicker; 07-09-2019 at 07:55 AM. Reason: ▼╫↔M+áB
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