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04-06-2008, 03:23 AM
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Too many projects
Join Date: Mar 2004
Location: Fargo, ND land of the flat hills
Posts: 1,147
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New 1991 Suburban
I'm normally over in the 67-72 trucks side of things, but I'll take a shot here for a second.
I just picked up a 91 Sub 2WD 1/2 Ton for $250. Dented but mostly rustless body, runs, new battery and radiator, 350 and a 4 speed automatic. A good friend of mine was going to scrap it, but offered it to me instead. I couldn't pass it up for that price. Now to the point, I believe this rig should have a 700R4 or a 4L60 possibly 4L60E, and is there any indication from below which tranny it is? I plan to eventually swap this tranny in place of the powerglide in the 67 Chevelle I'm buying tomorrow (after selling my '06 cobalt). Sorry for the long windedness (sic), but I'm pumped that I picked up another rig, and getting another tomorrow! Any help or diagrahms would be great.
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Andrew 84 GMC C1500 SWB 6.2 Diesel/700R4/3.42 "Grandpa's odd duck" |
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04-06-2008, 02:19 PM
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Low & Fast!
Join Date: Jan 2007
Location: Knoxville, TN
Posts: 3,110
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Re: New 1991 Suburban
Quote:
hope this helps Trav
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04-08-2008, 06:51 AM
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Married to my Truck
Join Date: Apr 2006
Location: Houston, TX
Posts: 72
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Re: New 1991 Suburban
700r4
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1982 Chevy SWB C-10 (AKA my pride and joy  1989 Chevy Suburban (under construction) 1989 Honda Civic sedan (work car) |
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04-08-2008, 07:21 PM
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#4 |
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Too many projects
Join Date: Mar 2004
Location: Fargo, ND land of the flat hills
Posts: 1,147
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Re: New 1991 Suburban
I looked under it this morning and confirmed 700R4, but didn't get a look at the speedometer provision. Now I'm wondering if a 1991 would have an electronic speedo. If so, I'll have to source a mechanical conversion/gears. Any suggestions?
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Andrew 84 GMC C1500 SWB 6.2 Diesel/700R4/3.42 "Grandpa's odd duck" Last edited by lowrollin70gmc; 04-08-2008 at 07:22 PM. |
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04-08-2008, 07:26 PM
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Low & Fast!
Join Date: Jan 2007
Location: Knoxville, TN
Posts: 3,110
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Re: New 1991 Suburban
Quote:
Yes, I don't think it is mechanical.
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04-09-2008, 02:13 AM
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#6 |
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www.73-87chevytrucks.com
 
Join Date: Dec 1999
Location: Birmingham, AL
Posts: 6,935
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Re: New 1991 Suburban
91 will be electronic.
4L60E started in 1993. 4L80E started in 1991, but in the 1 Ton's.
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Chris Lucas 1973 Chevy C-10 1978 GMC Jimmy (2WD) - SOLD 1987 R10 twin turbo LS 1991 R3500 SRW CrewCab 1985 K5 diesel swapped project 1989 K5 2WD conversion w/ Vette susp Project Captkaos Customs 73-87chevytrucks.com |
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04-10-2008, 07:22 PM
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Tonawanda 454
Join Date: Mar 2004
Location: Liquid Sunshine State
Posts: 2,755
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Re: New 1991 Suburban
I have a 91 R2500 (3/4 ton, 2WD) with 454 and it has the 4L80E.
I was curious about this as well since I understood that the 91 burb has the mechanical since it is the 87-older truck body style and parts... and the electronic was not used until 1992 with the burbs and 88 with trucks. That was my understanding. Oh well it is going to be sold soon since it is rarely used and just eating up insurance money not being driven.
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91 Chevy Suburban Tonawanda 454 R2500 - SOLD!!!  04 Dodge Durango 5.7L Hemi 2WD, 24K miles (as of July 2011) In the past 30 years about 90% of Fords are still on the road, the other 10% made it home. ------------------- Last edited by screwballl; 04-18-2008 at 04:01 AM. |
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04-10-2008, 07:39 PM
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In the Forgotten far North.
 
Join Date: Jul 2007
Location: Anchorage, Alaska
Posts: 2,627
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Re: New 1991 Suburban
I've got a '90 V2500 with 350/TH400/NP241 transfer case and it has the electronic speedo in it.
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1987 R3500 CREW CAB DUALLY (BIG RED)Acquired 06/12/2015 1990 chevy suburban V2500 5.7L My cluster Mods-Nov 2007 overhead console Stereo install Round 2 Aug 2009 Heated/turn signal mirror upgrade |
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04-10-2008, 07:46 PM
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#9 |
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www.73-87chevytrucks.com
Join Date: Dec 1999
Location: Birmingham, AL
Posts: 6,935
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Re: New 1991 Suburban
Anything after 1987 will have an electronic speedo for the VSS signal to the ECM.
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Chris Lucas 1973 Chevy C-10 1978 GMC Jimmy (2WD) - SOLD 1987 R10 twin turbo LS 1991 R3500 SRW CrewCab 1985 K5 diesel swapped project 1989 K5 2WD conversion w/ Vette susp Project Captkaos Customs 73-87chevytrucks.com |
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04-17-2008, 04:16 AM
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In the Forgotten far North.
Join Date: Jul 2007
Location: Anchorage, Alaska
Posts: 2,627
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Re: New 1991 Suburban
Quote:
Your local dealership will be able to run your V.I.N. # for as old as 1990 models.
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1987 R3500 CREW CAB DUALLY (BIG RED)Acquired 06/12/2015 1990 chevy suburban V2500 5.7L My cluster Mods-Nov 2007 overhead console Stereo install Round 2 Aug 2009 Heated/turn signal mirror upgrade |
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04-23-2008, 09:31 PM
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#11 |
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Too many projects
Join Date: Mar 2004
Location: Fargo, ND land of the flat hills
Posts: 1,147
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Re: New 1991 Suburban
My dad just removed the dash bezel (for his 84) and it is an electric speedo.
I have a new question... Will I be able to run a mechanical fuel pump on this motor. There is a boss for it on the block, but is there a cam within the motor to drive the rod and therefore the pump?
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Andrew 84 GMC C1500 SWB 6.2 Diesel/700R4/3.42 "Grandpa's odd duck" |
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04-23-2008, 11:53 PM
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Low & Fast!
Join Date: Jan 2007
Location: Knoxville, TN
Posts: 3,110
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Re: New 1991 Suburban
Quote:
You will have to get a rod that runs on the cam and you should be good to go..
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04-25-2008, 06:32 AM
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#13 |
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Too many projects
Join Date: Mar 2004
Location: Fargo, ND land of the flat hills
Posts: 1,147
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Re: New 1991 Suburban
Side freebie note:
If anybody lives in Sioux Falls, in a few weeks she'll be free for the pickin' (hate to crush good parts). No shipping and I won't charge for parts nor remove them for you. You come and remove it and it's yours, ABSOLUTELY FREE! See thread here: http://67-72chevytrucks.com/vboard/s...d.php?t=289114
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Andrew 84 GMC C1500 SWB 6.2 Diesel/700R4/3.42 "Grandpa's odd duck" Last edited by lowrollin70gmc; 04-25-2008 at 06:38 AM. |
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05-18-2008, 07:57 AM
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#14 |
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Too many projects
Join Date: Mar 2004
Location: Fargo, ND land of the flat hills
Posts: 1,147
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Re: New 1991 Suburban
Frank the tank is now dead. Life has been given to my Chevelle. Actually came out pretty well, I'll toss up picks tomorrow.
Thanks for the tranny info. -lowrollin
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Andrew 84 GMC C1500 SWB 6.2 Diesel/700R4/3.42 "Grandpa's odd duck" |
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