I Really Need Some Help From 80/82 Model Owners
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From: WAY DEEP INSIDE AMERICO,YES YOU LIVE HERE TO!! TX
I Really Need Some Help From 80/82 Model Owners
I really feel my trans may be sitting a little high. I need to finish my
crossmember modifications. I need to move on and get it done. I have
been switching project on the car, so I don't get burned out. Its working out pretty well.
this is what I need. Will someone please measure the top of the rear
crossmember to the drive shaft like in the pic. I don't know if 73/79
are the same as 80's models, so that why I ask for the 80's models
measurement. I know it's a big deal to go jack up the car and take a measurement. But I need to make sure I get this right. Maybe someone
has their car already jacked up.
From the top of the rear crossmember to the driveshaft I have 1 3/4
inch.
crossmember modifications. I need to move on and get it done. I have
been switching project on the car, so I don't get burned out. Its working out pretty well.
this is what I need. Will someone please measure the top of the rear
crossmember to the drive shaft like in the pic. I don't know if 73/79
are the same as 80's models, so that why I ask for the 80's models
measurement. I know it's a big deal to go jack up the car and take a measurement. But I need to make sure I get this right. Maybe someone
has their car already jacked up.
From the top of the rear crossmember to the driveshaft I have 1 3/4
inch.
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From: WAY DEEP INSIDE AMERICO,YES YOU LIVE HERE TO!! TX
Originally Posted by UKPaul
Deleted as I've only got the measurements at the front (may be able to measure the rear tonight. Possibly).
Thread Starter
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From: WAY DEEP INSIDE AMERICO,YES YOU LIVE HERE TO!! TX
Originally Posted by Ak. Mal
If you don't have an answer by late evening, I'll be able to run out and check for you.
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From: Beecher Illinois
OK, don't know if you'll want to go with this, maybe as additional reference. Measured both my 79s, no big deal as one's up on stands for brakes and the other's up on the hoist. Both are 1 1/2".
Mike
Mike
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From: WAY DEEP INSIDE AMERICO,YES YOU LIVE HERE TO!! TX
Originally Posted by KapsSA
OK, don't know if you'll want to go with this, maybe as additional reference. Measured both my 79s, no big deal as one's up on stands for brakes and the other's up on the hoist. Both are 1 1/2".
Mike
Mike
Thanks, anything helps
I'll wait to see if anyone else comes up with the same #'s
Safety Car
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From: Surrey
MEGALADON,
Didn't get over to the Vette last night (one of the joys of my job) but I'll make a point of driving over tonight to jack it up. Apart from anything else, I want to see how a winter in a damp garage has affected it
If you think the trans is to high, then the following info could be useful:
Th350C trans. With a straight edge placed against the lower edge of the chassis & run across the car, the lower edge of the yoke shaft is 3" above the edge at the point where it exits the trans oil seal ie. pass a length of straight wood under the car, lift it up to the chassis at each side & there will be a 3" gap between it & the shaft.
As you're looking at the trans possibly being wrongly positioned, is that info what you need, or do you still want the gap at the rear as well?
Didn't get over to the Vette last night (one of the joys of my job) but I'll make a point of driving over tonight to jack it up. Apart from anything else, I want to see how a winter in a damp garage has affected it
If you think the trans is to high, then the following info could be useful:
Th350C trans. With a straight edge placed against the lower edge of the chassis & run across the car, the lower edge of the yoke shaft is 3" above the edge at the point where it exits the trans oil seal ie. pass a length of straight wood under the car, lift it up to the chassis at each side & there will be a 3" gap between it & the shaft.
As you're looking at the trans possibly being wrongly positioned, is that info what you need, or do you still want the gap at the rear as well?
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Meg, you should have built the crossmember lower so you can shim the transmission up, there's no way to shim it down so any adjustment that you can build into it can only be done by building it too low. I hope it's okay as it is but it looks kind of high in whch case you'd have to redo it.
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From: WAY DEEP INSIDE AMERICO,YES YOU LIVE HERE TO!! TX
Originally Posted by Twin_Turbo
Meg, you should have built the crossmember lower so you can shim the transmission up, there's no way to shim it down so any adjustment that you can build into it can only be done by building it too low. I hope it's okay as it is but it looks kind of high in whch case you'd have to redo it.
if I could find a trans mount about half an inch shorter then the
one I got.
Most likely, I will cut the bottom trans plate off, and reposition
it a little lower.
If anyone knows where I can get a shorter trans mount, please
let me know
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If anyone knows what the engine inclination is supposed to be you could check it easily. Does the trans stay clear of the tunnel and does the stick fit properly? How about the crank pulley to crossmember clearance, all those are indicators of an incorrect engine inclination. It isn't too much of a problem apart from the engine mounts twisting (the rubber, or urethane part, assuming you don't have solids) I have my transmission tucked up rpetty high also so I have max. ground clearance. The pinion and talshaft angles can be adjusted to match so you don't get vibration.
Here's mine, look at how high the output shaft sits here.
I'm not aware of a shorter mount being available, mine's pretty high also because it adapts to the ZF6 c-beam mount with an adapterbracket.
Here's mine, look at how high the output shaft sits here.
I'm not aware of a shorter mount being available, mine's pretty high also because it adapts to the ZF6 c-beam mount with an adapterbracket.
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From: WAY DEEP INSIDE AMERICO,YES YOU LIVE HERE TO!! TX
Yea MARCK, yours is high, but I know thats how you set it up to be.
Some guys here have posted pic's of their swap, and I don't
ever remember seeing the shifter plate come up a little past the
top of the tunnel.
Some guys here have posted pic's of their swap, and I don't
ever remember seeing the shifter plate come up a little past the
top of the tunnel.
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From: DFW TX
Cruise-In VII Veteran
St. Jude Donor '07
Pulled pic because of size.
Mine looks level from the side, but low. As you can see in the picture I had to clearance the e-brake pulley not to hit the u-joints.
Mine looks level from the side, but low. As you can see in the picture I had to clearance the e-brake pulley not to hit the u-joints.
Last edited by Budman68; Feb 7, 2006 at 01:56 PM.
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From: WAY DEEP INSIDE AMERICO,YES YOU LIVE HERE TO!! TX
THANKS G,
Your the second one to say that.
I will set mine a 1 1/2 and see where it puts me.
It shoud drop the rear of the trans about 1' inch.
I'll post pic's when I'm done.
Your the second one to say that.
I will set mine a 1 1/2 and see where it puts me.
It shoud drop the rear of the trans about 1' inch.
I'll post pic's when I'm done.
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From: Beecher Illinois
Originally Posted by UKPaul
Th350C trans. With a straight edge placed against the lower edge of the chassis & run across the car, the lower edge of the yoke shaft is 3" above the edge at the point where it exits the trans oil seal ie. pass a length of straight wood under the car, lift it up to the chassis at each side & there will be a 3" gap between it & the shaft.
For a quick look, bottom surface of driveshaft at the front is about 1/2" below the floorboards at either side of the tunnel.
Mike
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From: Bonney Lake WA
Don't forget to check to see how your fan sits in the shroud. Lower the *** too much and the fan sits too high. This is more and more a problem with all the different manufacturer's for engine mounts these days. Of course as said above if your aft mount is already too high your hosed.
Scott..
Scott..
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From: WAY DEEP INSIDE AMERICO,YES YOU LIVE HERE TO!! TX
Originally Posted by aqua80
Don't forget to check to see how your fan sits in the shroud. Scott..
I found i am only a half inch off, so I have to redo my crossmember.
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From: Surrey
Originally Posted by KapsSA
Tried this out on my 79. Came up with 3 3/4". Measured from the top of the 2X4 held up to the frame rails just behind the crossmember to the bottom of the yolk just as it leaves the trans.
.Mike
.Mike
MEG,
Measured the gap last night &, in exactly the same position you were measuring in your pic, I got a measurement of 1 1/8".
As for engine inclination, the STOCK fan with the stock shroud is VERY close to touching at the highest point (which is why I spent so much time checking out the heights). Dropping the trans down even slightly at it's mounting point causes the fan blade tips to actually touch the shroud, so there's not a lot of room for error. As I'd taken the shroud, rad, support, etc out for a spot of R&R the chances are that I've got them back in place a bit low but, even so, it's pretty darn tight in there!
edit: some more info that might help. While messing about with mine I called Corvette Kingdom in the UK. They had an '81 in the workshop at the time so got it up in the air & took a measurement for me. What the measured was a distance of 3 5/8" from the lowest point of the shaft where it exits the tranny oil seal to the face of the cast plate fxed to the tunnel above it. That was a totally stock '81 so the above measurements should let you get it set up spot on.
Last edited by UKPaul; Feb 8, 2006 at 05:15 AM.