Guest Nic-Rebel450CA Posted August 31, 2003 Share Posted August 31, 2003 Is there anyone who would be willing to help me with some GM questions not Z related? Everyone here seems to be very skilled and I would be more apt to trust you all then any new friends I could make on a new forum. Things I need help with: Couple auto-transmission questions.. Couple mount/frame questions.. Couple engine/trans combo questions.. If anyone will help please pm me or email me. Quote Link to comment Share on other sites More sharing options...
383 240z Posted August 31, 2003 Share Posted August 31, 2003 What are the tranny Q's I can help you with those. Keith Quote Link to comment Share on other sites More sharing options...
Mike C Posted September 1, 2003 Share Posted September 1, 2003 I'll help if I can as well. Put them here IMO as the answers may be informative to others. Quote Link to comment Share on other sites More sharing options...
Guest Nic-Rebel450CA Posted September 1, 2003 Share Posted September 1, 2003 ok, here's the questions and info I have recieved so far: Mount question: Wondering if i can use a mount on my 65 GMC pickup for the front tranny mount like what people are using in the Z to obtain better clearance for pipes. Frame question: There is a cross beam in the frame that goes from one side to the other about mid-way down the drive shaft (where the two parts of the drive-shaft are connected in the middle). This piece is directly in line with where I want to run my exhaust pipe. If I go under it then I will have pipe sticking way down which will look bad. Can I have holes cut in this for the exhaust to route through without seriously weakening the structure? (I can take a pic if you need to see what I am talking about). Carl says I may be able to do both and is gonna take a look at my truck in person. I asked 383 240z: Right now I have a 65GMC with a 350 (from an 88 Chevy) and a TH400. I would like to get/make a kickdown linkage as it is really annoying trying to downshift with a column shifter. How hard is this to do? Another question regarding this setup. I have noticed just in the last couple days that sometimes I can have as much as 8 mph difference at any given RPM. (ex. at 4000 RPM in D I can be going 68 mph, or only 60 mph) (Yes, it is geared low). Is this variance normal when a lockup converter is not present or could this be a sign of a problem. (Tranny was rebuilt completely about 10000 miles ago). Question regarding a different setup. I have a nice OLDS 455 that I plan to put into the truck. I have heard that I can bolt a 700R4 right up to it, any idea if this is true? Does the 700R4 need any electronics controls or can it be installed in a non-computer vehicle? (I want to get the 455 in so this pretty 350 can find itself at home in my Z ) He said: the 400 uses an eletrical solinoid for the kick down (drivers side rear single wire) I'll try and get you a diagram on how to make it work. as for the olds 455 you will need a unibolt case to fit the olds block I've never seen them in a 700 (...) Quote Link to comment Share on other sites More sharing options...
Guest Nic-Rebel450CA Posted September 1, 2003 Share Posted September 1, 2003 oh ya, and if there is anyone in the Sacramento area that would like to help me figure out how the heck to get a timing arrow on this 350 I would be very greatful. Maybe even a 6 pack and a pizza worth No bolt holes apparent for a bolt on one, no weld mark apparent for a weld on one. About a dozen people have told me it may have never had one... ? :| Quote Link to comment Share on other sites More sharing options...
383 240z Posted September 1, 2003 Share Posted September 1, 2003 timing pointer is VERY easy. measure the dampner and go to the parts store or speed shop and pick one up they bolt to the timing cover bolts. All done in about 10 min. Keith Quote Link to comment Share on other sites More sharing options...
Guest Nic-Rebel450CA Posted September 1, 2003 Share Posted September 1, 2003 timing pointer is VERY easy. measure the dampner and go to the parts store or speed shop and pick one up they bolt to the timing cover bolts. All done in about 10 min. Keith Someone told me that I cant use one of those. Dont recall why. (It's been a few years since I even bothered trying to get an arrow on it). Could my dampener be a size that would prevent such installation? Eh, maybe I should just try going to a different shop Quote Link to comment Share on other sites More sharing options...
383 240z Posted September 1, 2003 Share Posted September 1, 2003 I dint think so I have a 65 motor with a timing tag it has a very small damper on it and I have a different motor with a 8" balancer on it if you want I'll send you the timing cover from the 65 motor if it will work for you. I don't plan on using it. Keith Quote Link to comment Share on other sites More sharing options...
Mike C Posted September 2, 2003 Share Posted September 2, 2003 The center carrier bearing support can be modified like this: Using a hole saw of 4-5" diameter depending on your pipe size as you want at least 1/2" clearance all around, drill holes on either side of the support. Then get two pieces of 1/4" wall pipe of same diameter as your hole saw. Cut them into 1" deep pieces, then weld into the holes you cut. Now route your pipe through here. Your structural integrity will be maintained, and the pipes can shoot straight through. A TH400 uses an electric kickdown solenoid on the throttle linkage. Very easy to adapt. What do you mean front trans mount? Except for the 55-57 cars and the 60's-72 trucks with manual trans that mounted the bellhousing to "ears", you should have the same style mount as newer GM cars. Please clarify. If you mean engine crossmember, I would get a 71-72 engine crossmember and mount the V8 using the 6 cylinder mounts which will move the motor close to the firewall and allow using either shorty headers or straight dump rams horns manifolds. I have the 2 1/2" ones on my Jimmy. The 71-72 trucks are front disc brakes, but 5 lug pattern. You could use the rear from the newer truck and have 5 lug all around. Also, check out http://www.67-72chevytrucks.com as they have a board for all the different years of trucks. I know several people have posted pics of the modified carrier bearing crossmember. Quote Link to comment Share on other sites More sharing options...
Guest grinsha Posted September 2, 2003 Share Posted September 2, 2003 Another good Board is the Stovebolt They can probably answer any questions you have http://www.stovebolt.com/bboard/cgi-bin/ultimatebb.cgi Quote Link to comment Share on other sites More sharing options...
383 240z Posted September 4, 2003 Share Posted September 4, 2003 Hey MikeC do you know any good sites for 89 chevy trucks? I just bought a 89 3/4 ton 4x4 to pull the cars to the track it is great except for the 4:10 gears and the TH-400 it is REAL busy at highway speeds. Keith Quote Link to comment Share on other sites More sharing options...
Guest Nic-Rebel450CA Posted September 4, 2003 Share Posted September 4, 2003 the 4:10 gears and the TH-400 it is REAL busy at highway speeds. Keith Hee hee, same trouble with mine. Are you looking to change the rear-end gears, or the tranny? If you want to change the gears I know a couple sites to buy the gear packs. I actually decided to keep my 4:10's in exchange for changing the transmission. Quote Link to comment Share on other sites More sharing options...
383 240z Posted September 4, 2003 Share Posted September 4, 2003 I work in a tranny shop I'm considering a 700 swap but I don't have the time or money right now I just bought a bushing kit and fuel cell for the Z. Keith Quote Link to comment Share on other sites More sharing options...
Mike C Posted September 7, 2003 Share Posted September 7, 2003 I don't do the late model trucks, but the 67-72 board has a section for them. It gets a moderate amount of traffic (probably equal to this board) and they should be able to point you in the direction of more sites. Quote Link to comment Share on other sites More sharing options...
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