73-87chevytrucks.com
73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: scottsdale92 on July 08, 2011, 08:03:38 pm
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im switching my 700r4 scottsdale longbed 4x4 to 4 speed,need info on what trans and drive shatfs to use
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Youll need sm465 tranny but it has tp be 4x4 verison. Youll need bell crank, clutch and brake pedal assemblies, fly wheel, clutch disk assembly, front and rear drive shafts, transfer case. Your best bet would be to find either a parts truck thats 4x4 4 speed to get your parts off of it, or use that truck and put your engine in it.
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why do you want to switch? also to add on you need the whole clutch assembly from the pedal inside the cab to the fork brackets also
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why do you want to switch? also to add on you need the whole clutch assembly from the pedal inside the cab to the fork brackets also
Youll need sm465 tranny but it has tp be 4x4 verison. Youll need bell crank, clutch and brake pedal assemblies, fly wheel, clutch disk assembly, front and rear drive shafts, transfer case. Your best bet would be to find either a parts truck thats 4x4 4 speed to get your parts off of it, or use that truck and put your engine in it.
I listed that, Irish. The bell crank is the pivot rod that goes between the bell housing and the frame, and the rod that moves the bell crank I think is part of the pedal assembly. And, I personally would rather have a manual off road. More control over power and what not but, im not sure why he wants the swap.
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lmao i dont know how i skipped that sorry bud
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Ah, no worries. Oh, and the tranny crossmember may need to be moved since the SM465 is short. And you might want a new steering collumn without the shifter for the auto. And you will have to have a high hump tranny tunnel and will have to cut a hole out of it, or replace it with one from a manual truck.
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well im not big in automatics and i wanna lift it,i have a buddy with a rusted out 79 blazer thats 4 speed,would the parts out of it as far as trans and pedal assembly be compatible with my pickup?
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Yes, drive shafts will be different lengths though, so youll need drive shafts.
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just a new rear shaft or you might get lucky and your old might fit or close enough to get cut down
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thanks guys,you ever done a swap like this?
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its not ihard at all if you can pull the trans then your all good
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Be aware that if you can find parts from an 85+ it will have a hydrualic clutch linkage. I've done somewhat similar swaps; just be sure you have the right parts and go in with a plan and you will be surprised at how easy and fast it goes. btw to hang a new pedal assembly you will need to remove the steering column so this would be a good time to get one for a m/t truck.
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alright thanks,im using a 79' gmc jimmy for for the trans,t-case,and pedal assemblies.it does have a z-bar or mechanical clutch.which one is better to use?
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I prefer mechanical, but its all preference.
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I prefer mechanical, but its all preference.
x2
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I also prefer a mechanical linkage as well, however it may be easier to set up a hydraulic linkage if you run in to problems.
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The nuts that hold the brake booster / pedal assembly will probably be SAE on the 79, and metric on your truck. Just an FYI.
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do i also have to switch my booster and master cylinder,and im gonna use a hydraulic clutch in for the ease of installation,could i use the z-bar pedal for my hyd. clutch?,this forum is really big help with projects by the way
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You don't need to switch the brake booster and master; however, if you switch one you'll need to switch the other. They are interchangable to the firewall. I prefer the newer style myself and updated mine when I converted my clutch to hydraulic.
I'm not sure what you are refering to as the "z-bar pedal" If what you mean is that you're trying to make a short cut by not changing your pedal assembly; the clutch master can be installed in the same position in the firewall and bolted to the non-hydro pedal assembly if you drill a hole and use a pin in the clutch pedal arm but would be more straight foward to get the correct pedal assembly.
anyway I have some photos in my project thread of the both versions of pedal assemblies and some other info as far as placement of the clutch master etc. just read through I think somewhere in the middle you'll find the clutch info.
http://forum.73-87chevytrucks.com/smforum/index.php?topic=12330.0 (http://forum.73-87chevytrucks.com/smforum/index.php?topic=12330.0)
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I put a standard shift juice clutch cab on a mechanical chassis one time years ago and used the juice clutch pedal. I had to modify it though. I don't recall exactly what I did to it, but I do remember laying upside down under the dash welding something!
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The pedal on the hyrdraulic version is a little longer to help with leverage.