1964 GMC 3/4 ton build :D

[sdwolff98]

Hey Trev,
No these exhaust manifolds angle down at near 45 degrees at the collector. Yeah they are basically cast iron headers that are used on the 2002-2004 corvette Z06 they perform as good as smaller headers and are much cheaper I paid 100$ for the pair of those.
I am going to be trying the 2005 ls3 z06 manifolds as well I think I will get much better clearance from them since they are tight tuck factory manifolds.


Sean

[sdwolff98]

well after some muddleheadeness got the exhaust manifold issues worked out. found a set from a 2005 ls3 that are just sweat had to trim my frame a slight bit to accommodate them but the turned out very nic no interference issues on the exhaust pipe either. After that went back to the engine wiring and it is complete now. Sweet thing about these factory exhaust manifolds the o2 sensor is on top of the manifold right in the collector so no crawling around underneath the truck to get to em now. That lead to moving the o2 sensors connectors in my harness and much more. Got my corvette throttle pedal in today and will be working on that next. Another thing that has been bugging me is a cneter console..... Welp just found some thing that I am making work so far it is turning out very very nice.... Take a look and see what you think . The only truck based center console I have seen with a high mount transmission shifter built in. So after about 30 minutes of waiting at a junkyard broght it home and dropped it into place there. I had to raise the back of it about 3 inches due to slope of the floor in my truck but just finished sitting in the seat and checking out how well it fits. Now I have storage cup holders and shifter all taken care of for less than 200$... It came from a 2005 up f150 lariat or king ranch model. Either of those trucks area good source for them. Another bonus I am going to take advantage of is the fact it had rear ac vents on it . I took the back cover off it for right now and going to weld some plastic to fill the spots in then pull the vents and use them in the rest of the console I will have done by a fiberglass guy I know that does some awesome work.

Sean

[sdwolff98]

ok more progress on the interior as yall will see . I started working on the front section of the console yesterday while waiting for more money for the rear brake machining work being done. Should have some progress on that in the next few months once we get a cruise and a motorcycle purchase out of the way. On that note here are some pics of the work on the fronthalf of the center console in progress picked up a cheap sheet of 1/4 inch abs and started making the intial pieces for a test fit and so far coming out very nice. Next step will be the face panel where the radio and recycled ac bezels from the back of the console will go into. Then once all that is done can get some synthetic leather stuff and cover the panels to match the seats and console. From there mount the ecm and wiring setup under the front sectoin of the console.


Sean

[truckzilla]

Sweet job man. I stumbled onto your buildthread by accident as I am doing an '81, but your info will help me alot as well.
Thanks.

[sdwolff98]

I will be adding some more to the thread here soon putting heat/sound barrier in the cab atm so I can put my carpet in soon. Thanks this is my baby getting another toy this weekend lol 1970 dodge dart swinger
sean
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[truckzilla]

Anything new happening?

[sdwolff98]

Yeah working on a few things atm.. insulation atm. And carpet soon as well.. transmission is in the shop getting switched to 2wd shaft. Will be putting some updates on the shifter here soon.



Sean
Posted via Mobile Device

[sdwolff98]

Ok here is some of what I have been up to of late. I just got the disc brake adapter plates today and will be installing them sat morning and will get pictures when I do so. Also have been insulating and sound deadening the cab with some stuff I found from a local texas supplier.
Will be picking up some thin abs sheeting to sover the insulation on the firewall and make it look nicer here soon. They have 1/16th inch thick sheeting for 21 bucks for a 4x8 foot sheet the extra will go into a storage attic until I have a use for the rest.... *eyes on the dart*
Here are some pics of the insulation progress to date:




Sean

[sdwolff98]

Also been working on the shifter. I didnt like the factory ford shifter that came with that console. So I got to looking at newer consoles lol. The factory shifter for the 07 trucks on has 3 drive positions on the shifter and detents grrrrr. But as luck would have it the 10 up ford trucks have 4 drive positions on the shifter . So off to ebay I went and 35$ later I had a 2010 for shifter lol. I had to make a mounting plate inside the 08 console so that it sat flush with the console top but it worked out nicely as you will see. I also got to looking at the shifting cable the ford one wouldn't work with the chevy transmission so I went looking thinking and hunting around and came up with a bm 6 foot shifting cable from a unimatic setup. More on that later!


Sean

[sdwolff98]

Next Project after the insulation is done is junk yard hopping for some carpet out of a later model chevy truck and a little judicious heat application and remold it to my floor board ifn I can and add insulation where I cant for support. First things first measurments alot of them lol. Preferably going to grab a crew cab carpet so I have some extra material to play with and possible do the back cab wall with the estra left overs!

Sean

[truckzilla]

It looks like your console project is going to look exceptionally cool. I am going with the same transmission in my '81, but can't go the console route since I'm sticking to a bench, so I haven't gotten a handle on my shifter woes.
On the hunt for carpet; I'd suggest looking at Surburbans as well. A lot of carpet in those for sure. Looking forward to seeing your brake brake brackets. Your interior is going to be awesome!

[sdwolff98]

Hey Zilla,
Yeah looking at the suburbans as well just not as many of them on car parts.com to go and look at lol. Going to be interesting no matter which route I go.

Sean

[sdwolff98]

well havent made a lot of progress at the moment mainly waiting on things to come together. But... my wife managed to surprise me with my birthday present a little early check out the decal for the back window of my truck!


Sean

[sdwolff98]

been busy the last few months doing little things on this truck the cab insulation is complete now. Will be ordering carpet for the truck this friday to install then will start reassembling the interior here very soon. On the 6l80 I have it a trans shop and they were trying to convert it to a 2wd with a donor trans they had that has a cracked reverse drum in it. They kept telling me the shaft would not work lol... Good reason why their donor trans is a 6l90e not a 6l80e. So now they are getting a new drum for the 6l90 and putting it together for me instead of the 6l80 lol. They replaced the clutch discs and valve body in the 6l90 already so will have a very fresh trans when all said and done plus being a 3/4 / 1 ton transmission to boot!. Working on the engine covers and e brake cables today. Got to go back to the cheby house and find a little piece called an equalizer for the e brake cables for my disc conversion. Looking at the parts diagrams the passenger side cable is much shorter than the driver side and the equalizer is part of that assembly. now all I need is that peice and figure out how it intergrates the two cables and should be just about set on rear disc brakes sean style..... The engine cover turned out beautifully with the older gmc emblems I had floating around in a box in my garage. *chuckles* I paid 50 bucks for a truck that had them on the sides of the hood not realizing they are from a 56-58 gmc but oh well found a use for them so nothing wasted. Once I get the trans home will be reinstalling the engine and trans so I can find out where the trans shifter cable needs to go through the floorboard and start reassembling all of the interior, wiring harnesses etc. Then on to the cooling system and drive shaft. Once those two are finished painless is gonna send me there new test harness and computer for the 6.2/6l combo to do a test fit and run on it!!!! I dont know what the rewards is for helping them in their rnd but looking forward to having this thing up and running. I have the tank and all the fittings reasy to go plus a ford fuel pump that puts out up to 90psi and the corvette filter/regulator assembly. After that on to the bed get it lifted off the truck and replace the wood floor and strips and get ready for inspection and drive time :{) .... cant wait 13 years and I am more than ready to load this beast up with a 20 foot trailer and get to movin into a new house with 5 acres for more toys!

Sean

[sdwolff98]

Ok been busy with the 6l90 and brakes a few other odds n ends .. Things are shaping up nicely now. I grabbed a 2008 truck driveshaft for cheap from a junkyard for the 6l90 slip yoke and got to looking at it and am now going to shorten and use it instead of having a new one built. I found a 1410 yoke for my dana 60 online for 34$ so everything will match on the driveshaft nicely now. Today I got the exhaust manifolds mounted and in place and nicely enough they clear the frame with plenty of clearance. I got a set off a guy on the camaro 5 forums for 70 bucks!!!! these are the 2010 l99 vvt engine manifolds the 425 horse one so should handle what my engine throws out nicely enough. I also recently went back through and revised my ecm and wiring fuse block mounts for the fuel injection harness. Word to wise. Do not use the power train relay activation wire on the ecm it doesnt work at all becuase it requires input from the bcm to activate. I used my coil wire coming of my frame/chassis harness to power up the engine and trans computer relay set and works great still need to get the ecm reprogrammed next. I revised my ecm fuse block a bit using soom scrap abs I had laying around and have it pretty compact now to mount under the center console setup.

Sean

[sdwolff98]

Also got the 6l90 and engine back in the frame and mounted down now. The trans shop had a hard time with the 6l80 changing it over lol. They had a "donor" transmission given to them laying around and they had believed it was a 6l80e setup. Well they called me up and said the output shaft is too big lol. I went over eyeballed it counted teeth and told well yeah of course it won't work!!!!! It is the wrong transmission lol. They then told me what the "donor trans" came from. Well to make it a long story shortened. I now have a 6l90e rebuilt with new clutches new reverse drum and all assundry hardware for 1500$..... Much cheaper then junkyard diving for one then having to rebuild it lol. Got it installed and looked at the trans pan way off level by almost 15 degrees so broke out some plate scraps and spaced the trans to where it is level. Going to be working on the driveshaft soon and will make the corrections in how the driveshaft angles to help level the driveline out some. Will go back later with a aluminum block machined for the sapcing needed and make it solid all the way across the mount setup.

Sean

[Captainfab]

Sounds like you got a decent deal on a new trans.

Your trans pan doesn't have to be level. Typically the engine and trans is lower in the rear. IIRC it is about 4 degrees down to the rear. Your trans output shaft needs to be at the same angle as the pinion shaft on your rear end.

[padresag]

Originally Posted by Captainfab

Sounds like you got a decent deal on a new trans.

Your trans pan doesn't have to be level. Typically the engine and trans is lower in the rear. IIRC it is about 4 degrees down to the rear. Your trans output shaft needs to be at the same angle as the pinion shaft on your rear end.

now I do not know the rule with injection. but with a carburated engine did not the carb mounting flange (manifold) sit level and the crank drop at a about 3-4 degree angle down towards the back. the pinion centreline would be in the same plane with perhaps a 1 degree or so discrepancy.
ron

[Captainfab]

That is correct. With the carburated engines, the carb pad on the intake should sit level or slightly down to the rear. This will put the crank centerline at aprox 4 degrees down to the rear. This should be the same as the angle of the pinion in the differential, for smooth operation of the dirveshaft.

Originally Posted by padresag

now I do not know the rule with injection. but with a carburated engine did not the carb mounting flange (manifold) sit level and the crank drop at a about 3-4 degree angle down towards the back. the pinion centreline would be in the same plane with perhaps a 1 degree or so discrepancy.
ron

[padresag]

Originally Posted by Captainfab

That is correct. With the carburated engines, the carb pad on the intake should sit level or slightly down to the rear. This will put the crank centerline at aprox 4 degrees down to the rear. This should be the same as the angle of the pinion in the differential, for smooth operation of the dirveshaft.

I would presume that the same rule would apply to injected engines
ron

[sdwolff98]

hmmm thanks for that info Captain I will grab a plum bob and check theat my next day off.

Sean

[sdwolff98]

Well in the midst of trying to get my shifter cable in hand discovered a slight problem lol...... The chevy shifter have a 3 inch stroke in travel to shift and the fords use only a 2 inch stroke in travel when shifting........ So now to customize a shifter for my console that will work. Luckily I have a lokar trans mount shifter I am in the process of modifying to work on the ford center console.... Hate to just scrap and throw it away as nice as it is.... Will talk to the machinist about some nice scrollwork aluminum plate to surround the shifter stick where it comes out of the console!!!

Sean

[truckzilla]

Hey Sean, any chance you remember the details like stock numbers so that I could order the same Lokar shifter for my 6L80?

[sdwolff98]

Hey Truck,
I used a 700r4 model shifter for the 6l80/6l90 in my truck . I started out with a tail mounted shifter then went and got fancy with it lol. made some mounting brackets and put it in my console of the truck. On the 700 tailshaft mount you have to remove the material between the bolt holes to get it to mate to the back on the 6l80 housing will get a picture of it tonight and post it up later.

Sean
part number:
ATS6700ETM Automatic Trans Shifter 700-R4 8" Tailmount

[sdwolff98]

Hey Truck,
Here is a picture of the tail shaft mount mod to get the lokar to fit the 6l80. there are two sets of bolt holes in the bracket where it bolts to the tranny so it can fit either the 700 or the newer 4l60 I removed the material between to holes to get it to match up to the bolt pattern on the 6l80.

Sean