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#1 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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What tranny did your truck come with?
This is specificly for the 3/4 ton or one ton small block/automatic 2 wheel drive trucks here...
I've had 3 Longhorns now if you include the parts whore that got cut up last month. 70 CST/20 70 C/30 72 Cheyenne/20 Both of the 1970 had 350 small blocks, and the 72 had a 307. All 3 had TH350 in them originally. Everyone who asks about my trucks, is always confuised about the TH350. Why mine would have come with the small tranny instead of the beefy TH400. So what else is out there small block heavy truck guys... was the TH400 only with big blocks, or what? |
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#2 |
Registered User
Join Date: Jun 2004
Location: Beeville, Texas
Posts: 1,943
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Re: What tranny did your truck come with?
The cab on my truck is from a 1970 C20 Longhorn, model number is CE21034 I think. It had the LS9 350 and M49 Turbo-Hydramatic for the drive train options, but the frame and suspension of my truck is actually a 1970 C/20 cab-and-chassis. It also had the LS9 350 but had a SM465 stick shift, used to be light blue and had a farm stakebed on it. Right now it has a 350 2 bolt main engine, and a TH400 auto. Rear end is the original Eaton with 4.10's. Isn't that the correct ratio for a truck with a 350/SM465? Or was it 4.56?
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RJD 1984 Chevrolet C30 welding truck 454/SM465 1977 GMC C15 pickup 350/TH350 1970 Chevrolet C20 pickup 350/TH400 1970 Chevrolet K20 Suburban 454/TH350 1969 GMC 8500 478M V6/5 spd winch truck |
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#3 |
Senior Member
![]() Join Date: May 2004
Location: Queen Creek, AZ
Posts: 1,015
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Re: What tranny did your truck come with?
I"m glad this post came up. My Suburban is a 1969 3/4 ton 2WD. It has a 400 in it. The serial number is CE249F887988, but lists option code 4M35JA & PowerGlide transmission. It seems odd to me that they would have a Powerglide in a 3/4ton. I didn't think they were that strong. I haven't looked at the serial numbers on the tranny yet to see if it is from '69. I doubt that it is since I do not have a kickdown switch.
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#4 |
Registered User
Join Date: Dec 2004
Location: Wellington Ohio(GO BUCKEYES)
Posts: 74
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Re: What tranny did your truck come with?
My truck started life as a Open Road motorhome,327 with a 400TH that what the tag said in the glove box and what was in it when I bought it. I've found two more Open Roads with the same drive trans setup.One of which I hope to own this spring.
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Pat ![]() ______________________ 1968 1 Ton Dually Flatbed 327/th400 1968 C30 Open Road 327/th400 1997 F350 CREWCAB 4X4 460 BIGBLOCK ![]() |
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#5 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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Re: What tranny did your truck come with?
yours said TH400?
I've only seen M49, which means turbohydramatic.... ne way of tellin 350 or 400. |
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#6 |
My son, my joy.
Join Date: Sep 2003
Location: Spokane WA
Posts: 463
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Re: What tranny did your truck come with?
My 69 3/4 ton came with a 350/ TH400.
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'69 Chevy 3/4 ton, 327cid, Carter AFB, Edelbrock intake, HEI, TH400. Founding member of the No Money To Spend On My Truck Club. When your at Home Depot, you WISH you had gotten an 8 foot bed! |
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#7 |
what knocking sound?
![]() Join Date: Feb 2005
Location: good ol North Dakota
Posts: 148
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Re: What tranny did your truck come with?
My 67 C20 came with a 327 and TH400. It also has heavy duty springs and a4.57 rearend. Guy must have known it was going to be a worker. The tranny has used up at least two motors, the 327, a 307, and is currently taking the abuse from a healthy 454.
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#8 |
huh ???
Join Date: Nov 2002
Location: Fredericksburg,Va.
Posts: 3,368
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Re: What tranny did your truck come with?
72 C/20 Custom Deluxe Custom Camper came with a 350 th/350 combo and a Dana 60 rear. Now has 66 396 700R4 combo...
Chuck
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90 Blazer Silverado 350w/ 700R4 and 32" Kelly's "I am a bomb technician. If you see me running try to keep up!" |
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#9 |
Registered User
Join Date: Mar 2005
Location: 10-Uh-See
Posts: 5,609
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Re: What tranny did your truck come with?
Three-on-the-Tree BABY.
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#10 |
Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,402
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Re: What tranny did your truck come with?
Mine was a 350, with 400 turbo....(C20 longhorn)
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69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears.... |
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#11 |
Registered User
Join Date: Nov 2000
Location: Huntsville Ontario Canada
Posts: 4,051
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Re: What tranny did your truck come with?
My parts truck was a 71 C20 Cheyenne It was all original 350/350 and the Eaton rear with 4:11 +++
The 400 Must have come with trucks designed to pull heavy loads.
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1968 Suburban numbers matching all original truck now equipped with 6.0/4L80 on Accuair http://67-72chevytrucks.com/vboard/s...d.php?t=625017 1967 C/20 6.0/4L80 Roofing Truck 1990 V2500 Suburban "Plow Truck" 2005 TAHOE DD |
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#12 |
Registered User
Join Date: Jan 2000
Location: Michigan
Posts: 312
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Re: What tranny did your truck come with?
Mine had 402/th400 setup, don't know what the rear gears are yet.
The option sticker said M49 too, but the trans i.d. chart in LMC cat., the placement of my modulator shows it is a th400 I just got the resto pkg from GM which showed the option lineups that could come from the factory, but by the sounds of it, they did not bother following the book all the time. my 2 cents
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Chuck 1972 C-20 Longhorn 402 BB .030" over (409?), curved HEI, RV cam, quadrajet, dual 3" exhaust, TH 400 ported w/shift kit 1999 K1500 Suburban (old style) 5.7L Vortec 4L60E "No matter where you go, ........ there you are" |
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#13 |
1968 C20 Vortec Beast
Join Date: Jun 2005
Location: STILLWATER,OKLAHOMA
Posts: 483
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Re: What tranny did your truck come with?
68 C20 327/400 Factory... But Not Any More!
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Ugly or not it still kicks a**! |
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#14 |
Where's my beer?
Join Date: Aug 2002
Location: I live in the state of denial....
Posts: 5,620
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Re: What tranny did your truck come with?
Andy, you know the TH400 not only came with BB's, since you only mentioned small blocks and BB I don't need to apply.
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Paul How do you make the invisible, visible?.........You take it away. |
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#15 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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Re: What tranny did your truck come with?
Eyah paul....400 is the only automatic they bolted to the V-6 if I'm not mistaken...that's what my old 1/2 ton GMC had originally... 305/TH400.
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#16 |
Registered User
Join Date: Nov 2003
Location: Kaukauna WI
Posts: 193
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Re: What tranny did your truck come with?
![]() HAVE A GREAT DAY EMMETT
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#17 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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Re: What tranny did your truck come with?
a 3.73 in a C/20??? If that is acurate...it sure wasn't stock.
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#18 |
Registered User
Join Date: Nov 2003
Location: Kaukauna WI
Posts: 193
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Re: What tranny did your truck come with?
![]() LATTER EMMETT
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