What trans in a 2wd '85? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**nlped** · 06-15-2010, 09:50 PM

What transmission typically came in an '85 Chevy 2wd swb Silverado with a 350? It has p/w & d/l, so I assume it's more than the typical base model...true?

Thanks,

Ed

**WestButteTruck** · 06-15-2010, 09:52 PM

Stock would have been the 700R4.

RandyP · 06-15-2010, 09:59 PM

And the 2wd 1/2 ton did not have an option of a 350 engine.

**nlped** · 06-15-2010, 10:07 PM

Quote:

Originally Posted by RandyP

And the 2wd 1/2 ton did not have an option of a 350 engine.

WHAT? I don't think that's right is it? This one has one, and sure doesn't look like it has ever been swapped out. I never heard that the 350 wasn't available in a 1/2 ton truck. Appropriate VIN # is "L" which equals 350 right?

85Bowtie · 06-15-2010, 10:09 PM

TH-350's where common in these trucks. 350 engines were also options.

**nlped** · 06-15-2010, 10:18 PM

I knew they came with a 350, I thought that was B.S.

Any way to tell other than just climbing around under the truck to ID the pan?

85Bowtie · 06-15-2010, 11:52 PM

Well, a 350 Turbo will be a 3 speed transmission, the 700R4 is a 4 speed w/overdrive. The pan is a good way to tell also.

The 700R4 is not the most common transmission in these trucks. They were available, but certainly not a guarantee of having one in yours. More than likely it will be a TH350

RandyP · 06-16-2010, 07:41 AM

In 1985, for a 1/2 ton 2 wheel drive pickup, you could not get a 350 cubic inch engine. Anyone who says you could, is wrong. Biggest engine available in that was a 305 cubic inch. Like it or not, that's how it was.

You had to step up to the 3/4 ton to get a 350, or a 4 wheel drive 1/2 ton. The suburban 2wd 1/2 ton did have the option of a 350 though. But an 85 chevy truck 1/2 ton 2wd... no 350 available, it's been swapped.

Slonaker · 06-16-2010, 09:29 AM

Quote:

Originally Posted by RandyP

In 1985, for a 1/2 ton 2 wheel drive pickup, you could not get a 350 cubic inch engine. Anyone who says you could, is wrong. Biggest engine available in that was a 305 cubic inch. Like it or not, that's how it was.

You had to step up to the 3/4 ton to get a 350, or a 4 wheel drive 1/2 ton. The suburban 2wd 1/2 ton did have the option of a 350 though. But an 85 chevy truck 1/2 ton 2wd... no 350 available, it's been swapped.

I agree with Randy and the others who said a 350 was not available on a 1/2 ton 2WD in 1985. Many have been swapped in during the 25 years since then, though, including mine.

The transmission could be a 700R4 or a TH350C. I have the TH350C in my '86.

Slonaker

silvereagle07 · 06-16-2010, 12:19 PM

If you have the build sheet (in the glove box or under the seat), then check out this page for the build rpo.
http://www.73-87.com/7387info/engtrans.htm

According to this page the th350 was still available in the 85. My dad's 85 has the th 350 with a 305 factory. It was still availible in 85.
http://www.73-87.com/7387info/engtrans.htm

100%Chevy · 06-16-2010, 02:13 PM

Started in 81 I believe.No 1/2 ton Chevy/GMC truck could be bought with any engine bigger than the 305.
When I bought my 82,4x4,I could only get the 305 in it.
My 85 GMC has a 350/350,factory trans-newer engine.
Mike.

06-15-2010, 09:50 PM	#1
nlped Senior Member Join Date: Jul 2009 Location: Hayden, Al. Posts: 4,147	What trans in a 2wd '85? What transmission typically came in an '85 Chevy 2wd swb Silverado with a 350? It has p/w & d/l, so I assume it's more than the typical base model...true? Thanks, Ed __________________ Carter 1968 Chevy SWB Fleet... Walt 1963-1/2 Ford Falcon Futura...Martha

06-15-2010, 09:52 PM	#2
WestButteTruck Kung Fu Master Join Date: Oct 2005 Location: Montana Posts: 546	Re: What trans in a 2wd '85? Stock would have been the 700R4. __________________ 72 GMC SuperCustom 4x4 1972 Chevrolet Cheyenne Super 4x4

06-15-2010, 09:59 PM	#3
RandyP Getting Old; Going Broke Join Date: Apr 2010 Location: Owasso OK Posts: 2,764	Re: What trans in a 2wd '85? And the 2wd 1/2 ton did not have an option of a 350 engine.

06-15-2010, 10:09 PM	#5
85Bowtie Registered User Join Date: Mar 2009 Location: TN Posts: 410	Re: What trans in a 2wd '85? TH-350's where common in these trucks. 350 engines were also options. __________________ '69 Dodge Charger R/T 440, 727, 3.55 Sure Grip '68 Plymouth Road Runner 383, 727, 3.23 Sure Grip '89 Dodge Diplomat ex cop car 408, 727, 3.55 Sure Grip '77 Dodge Monaco ex cop car 440, 727, 2.71 '79 Dodge 'Lil Red Express pickup 360, 727, 3.55 Sure Grip '12 Dodge Challenger SRT8 392, M6, 3.92 '85 Chevrolet C-10 SWB 2wd 305, TH350, 2.73

06-15-2010, 10:18 PM	#6
nlped Senior Member Join Date: Jul 2009 Location: Hayden, Al. Posts: 4,147	Re: What trans in a 2wd '85? I knew they came with a 350, I thought that was B.S. Any way to tell other than just climbing around under the truck to ID the pan? __________________ Carter 1968 Chevy SWB Fleet... Walt 1963-1/2 Ford Falcon Futura...Martha

06-15-2010, 11:52 PM	#7
85Bowtie Registered User Join Date: Mar 2009 Location: TN Posts: 410	Re: What trans in a 2wd '85? Well, a 350 Turbo will be a 3 speed transmission, the 700R4 is a 4 speed w/overdrive. The pan is a good way to tell also. The 700R4 is not the most common transmission in these trucks. They were available, but certainly not a guarantee of having one in yours. More than likely it will be a TH350 __________________ '69 Dodge Charger R/T 440, 727, 3.55 Sure Grip '68 Plymouth Road Runner 383, 727, 3.23 Sure Grip '89 Dodge Diplomat ex cop car 408, 727, 3.55 Sure Grip '77 Dodge Monaco ex cop car 440, 727, 2.71 '79 Dodge 'Lil Red Express pickup 360, 727, 3.55 Sure Grip '12 Dodge Challenger SRT8 392, M6, 3.92 '85 Chevrolet C-10 SWB 2wd 305, TH350, 2.73 Last edited by 85Bowtie; 06-16-2010 at 12:03 AM.

06-16-2010, 07:41 AM	#8
RandyP Getting Old; Going Broke Join Date: Apr 2010 Location: Owasso OK Posts: 2,764	Re: What trans in a 2wd '85? In 1985, for a 1/2 ton 2 wheel drive pickup, you could not get a 350 cubic inch engine. Anyone who says you could, is wrong. Biggest engine available in that was a 305 cubic inch. Like it or not, that's how it was. You had to step up to the 3/4 ton to get a 350, or a 4 wheel drive 1/2 ton. The suburban 2wd 1/2 ton did have the option of a 350 though. But an 85 chevy truck 1/2 ton 2wd... no 350 available, it's been swapped.

06-16-2010, 12:19 PM	#10
silvereagle07 Registered User Join Date: Sep 2008 Location: Bailey, NC Posts: 2,462	Re: What trans in a 2wd '85? If you have the build sheet (in the glove box or under the seat), then check out this page for the build rpo. http://www.73-87.com/7387info/engtrans.htm According to this page the th350 was still available in the 85. My dad's 85 has the th 350 with a 305 factory. It was still availible in 85. http://www.73-87.com/7387info/engtrans.htm __________________ Jeramy '84 GMC project truck '85 Chevy 4X4 SOLD '07 Chevy Trailblazer SS 5th Annual SHPHC Car/Truck Show Pics http://67-72chevytrucks.com/vboard/s...d.php?t=543605 UPDATED PICS! CHECK 'EM OUT Last edited by silvereagle07; 06-16-2010 at 12:24 PM.

06-16-2010, 02:13 PM	#11
100%Chevy Registered User Join Date: Jun 2008 Location: Moss Point,Ms. Posts: 1,439	Re: What trans in a 2wd '85? Started in 81 I believe.No 1/2 ton Chevy/GMC truck could be bought with any engine bigger than the 305. When I bought my 82,4x4,I could only get the 305 in it. My 85 GMC has a 350/350,factory trans-newer engine. Mike.



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