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12-18-2010, 02:56 PM
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#1 |
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Registered User
Join Date: Dec 2010
Location: iron station, nc
Posts: 49
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71 gmc problems
alllllright, i have a 71 gmc longbed with a 350 factory disc brakes up front, 3 on the tree, all the bells and wistles, it has all the beautiful rust spots in the corner panels and all that lovely stuff, and i just got the motor running pretty reliably... knock on wood but thats a different story, i cant wait to get in the process of restoring it the rest of the way and hoppin the motor up, but for right now my problem is...
my linkage/clutch ordeal... im 20 and have been driving the truck on and off for bout 3 to 4 years, and my question to all of you is what is my best bet, i want to eliminate the linkage hang up. its gotten really bad lately what transmission options am i looking at, i dont want a 350 or 400 turbo tranny and id kinda like to make it 4 in the floor or something but spit some options at me please. 
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12-18-2010, 03:36 PM
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#2 |
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Registered User
Join Date: Dec 2010
Location: iron station, nc
Posts: 49
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Re: 71 gmc problems
come on guys i need some help. io need to do this on a budget and i need it to hold some power for future plans
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12-18-2010, 03:52 PM
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#3 |
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Registered User
 
Join Date: Dec 2010
Location: Paradise, ca
Posts: 295
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Re: 71 gmc problems
I am not sure what you mean. is the linkage hanging up and you want to fix it?
what do you do with the truck? work? play? the factory sm-456 4 speed is great for a work truck, not as good for a hotrod.
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12-18-2010, 03:55 PM
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#4 |
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Registered User
Join Date: Dec 2010
Location: iron station, nc
Posts: 49
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Re: 71 gmc problems
in time it will be hotrod, and im tryin to just replace it. i could fix it but in terms of future plans it would just be a waste of money. in my eyes.
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12-18-2010, 03:57 PM
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#5 |
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Registered User
Join Date: Dec 2010
Location: Paradise, ca
Posts: 295
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Re: 71 gmc problems
so your not wanting to fix the clutch problem, and your not wanting a th350 or th400.
you probably want a 5-speed with overdrive
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12-18-2010, 04:00 PM
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#6 |
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Truck and auto performance nut
Join Date: Feb 2007
Location: McKinney,Texas
Posts: 3,848
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Re: 71 gmc problems
why not switch your 3 speed to a floor shift?
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Kurt - '68 GMC short step - NIB '09 LY6 6.0L crate motor w/mods, NIB '12 crate 4L85e w/billet 3k stall Circle D, 3.73 posi 12 bolt, DynaTech f-swap headers, 3/4 drop, handling mods, etc. - my toy '72 Chevy LWB C-10 Highlander - 350/350 ps/pb/tilt/ac - not original but close '06 Chevy TrailBlazerSS - LS2/4L70e - little black hot rod SUV - my DD '18 Kia Sorento - wife's econo-driver '95 Chevy S10 - reg cab shortbed, LS, 4.3, auto... my '68's powertrain and chassis build -links broken A surprise phase - carb to efi -links broken |
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12-18-2010, 04:09 PM
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#7 | |
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Registered User
Join Date: Dec 2010
Location: iron station, nc
Posts: 49
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Re: 71 gmc problems
Quote:
i didnt know that was a possibility.. please share ha |
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12-18-2010, 05:18 PM
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#8 |
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Registered User
Join Date: Sep 2000
Location: denton, tx, usa
Posts: 176
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Re: 71 gmc problems
My '67 with 3 on the tree would give me linkage hang up from time to time. I found I could replace the bushings(where the linkages connected to the trans) and that would solve the problem until the bushings wore and got too much slop in them again. I also learned to shift slower - letting it drop into 2nd as opposed to rushing it and this helped to.
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69 SB GMC LWB Fleetside 350, 09 Pontiac Vibe 2.4 liter |
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12-18-2010, 05:44 PM
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#9 |
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The Niner
 
Join Date: Nov 2010
Location: Broad Brook, CT
Posts: 2,500
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Re: 71 gmc problems
Sorry to highjack but isn't Iron Station, NC where former NASCAR driver Dick Trickle lives?
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12-18-2010, 06:55 PM
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#10 | |
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Registered User
Join Date: Dec 2010
Location: iron station, nc
Posts: 49
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Re: 71 gmc problems
Quote:
but back on topic ^ i agree on the bushings cause mine are pretty much shot. i "rushed" the gears some but also try letting it fall in aswell, i have more luck when i rush the gears actually, all in all i ordered the floor shift conversion kit, should be here monday or tues. and that will just buy me time on the swap. |
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12-18-2010, 10:32 PM
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#11 |
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Truck and auto performance nut
Join Date: Feb 2007
Location: McKinney,Texas
Posts: 3,848
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Re: 71 gmc problems
how about this one....and if you don't want new, maybe you could find a used one or even salvage one off the net?
Hurst 3speed 
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Kurt - '68 GMC short step - NIB '09 LY6 6.0L crate motor w/mods, NIB '12 crate 4L85e w/billet 3k stall Circle D, 3.73 posi 12 bolt, DynaTech f-swap headers, 3/4 drop, handling mods, etc. - my toy '72 Chevy LWB C-10 Highlander - 350/350 ps/pb/tilt/ac - not original but close '06 Chevy TrailBlazerSS - LS2/4L70e - little black hot rod SUV - my DD '18 Kia Sorento - wife's econo-driver '95 Chevy S10 - reg cab shortbed, LS, 4.3, auto... my '68's powertrain and chassis build -links broken A surprise phase - carb to efi -links broken |
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12-18-2010, 11:35 PM
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#12 |
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Big Red - Now its a SWB!
Join Date: Jun 2009
Location: Oroville, Ca
Posts: 1,624
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Re: 71 gmc problems
I think for future horsepower upgrades you should either look into the tko 500 5 speed or a t56 6 speed out of a 93-02 camaro. they will take some power. You could get a t5 out of an s10, but they start having problems when you get over 300 hp. lots of people on here have done all these swaps so there is lots of info on here if you search. I plan on doing the t56 swap one day. Good luck, and I hope this helps you out!
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68 3/4 ton (Project)-350 Small Block, .030 over, 10:1 comp, 3998993 heads, C3BX edelbrock intake, comp cams XE268, Holley 670 SA, long tube headers, dual flow 40's, E-fan, Alum rad, currently under the knife getting shortened and bagged  build thread41 3/4 ton (wife's)-flatbed, fully restored to original01 Tahoe LT 4WD (my daily driver)-Magnaflow Muffler, Rollin on 22's 02 Ford Mustang Convertable (Wife's Car)-Flowmaster 50, Clear corners, Intake, sittin on 18's |
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12-19-2010, 02:16 AM
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#13 |
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Registered User
Join Date: Dec 2010
Location: iron station, nc
Posts: 49
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Re: 71 gmc problems
went with the mr gasket kit. only 70 bucks.. hopefully it holds up better then whats there
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12-19-2010, 09:28 AM
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#14 |
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Registered User
Join Date: Jun 2010
Location: Jefferson, MD
Posts: 2,397
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Re: 71 gmc problems
Hurst Indy is what came on my truck. If you've got a bench seat, you'll have to modify the shifter a little for clearance in 1st and 3rd, but nothing major.
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'68 Dodge Dart 270, 225, 904, 2.76--"Lucy" 1996 Gmc 1500 Z71, 350, 4l60e, 3.73s 1995 Jeep Wrangler Rio Grande 2.5, AX5, 4.10s 1989 Toyota Pickup 22re, auto, 3.73 |
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12-19-2010, 09:37 AM
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#15 |
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I am a Referee of life.
Join Date: Jun 2000
Location: Greensboro N.C.
Posts: 13,992
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Re: 71 gmc problems
I'm a bit late with this but,I use the factory 3 OTT shifter and it works fine.I just had to clean and lube it a couple of weeks ago.There is a great write up in the FAQ's section of the board that details how to get the original shifter to work well and reliably.
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The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil" |
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