Author Topic: 68 Mustang Memorial Day Weekend Thrash  (Read 59711 times)

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GJCAT427

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Re: 68 Mustang Memorial Day Weekend Thrash
« Reply #45 on: May 25, 2015, 06:08:47 AM »
Jay, I`m looking at your install photo and seeing its tight, well I just installed the mockup motor and tranny in my Tbolt wagon and its tighter than the Mustang! I have it in my shop this weekend and using the shop hoist and my engine tilter I had it almost straight up! The motor has the factory deep pan on it as well. It fits ,but wow is it close. Next step is to seehow the headers fit in the chassie. I already had some fitment problems with the cross shaft but I`m working that out.I`ll post pictures in a couple of days.

jayb

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Re: 68 Mustang Memorial Day Weekend Thrash
« Reply #46 on: May 25, 2015, 12:34:28 PM »
Thought I'd take a lunch break and post some more pictures and a progress update.  After getting the engine installed and one the mounts last night, this morning I worked on getting the transmission mount installed, and the transmission positioned where I wanted it in the car. 

I started by jacking up the back of the transmission to see how well the shifter on the trans would align with the hole in the floor.  To my surprise and delight, it was nearly a perfect fit:



I could see there would be some minor trimming required around the opening, to clear the bolts on the left and right side of the shifter housing, but other than that there were really no issues.  Next I measured from the center of the transmission shaft to either side of the frame and the pinch weld of the rocker panels, and unfortunately found that the transmission was off center towards the drivers side by 1/2".  I thought I would try to just push it over into position, but there was interference with the tunnel in several spots.  The biggest interference spot was with these triangular ears that protrude from the passenger side of the transmission:



It didn't look like these things really did anything.  The top rear one was the biggest offender, so I decided to cut that one off with the sawzall, and grind a little on the lower rear one and top front one to add some clearance in that area.  Here's a picture of the modification:



After the modification I put the trans back up in the tunnel, but found more interference, this time with the factory crossmember support welded to the floor.  Some of that had been cut away already on Saturday, per Cory's post, but in order to get the trans centered in the tunnel I needed to cut away quite a bit more of it on the passenger side.  Down came the trans again, and with no good access for a cutting wheel I ended up using my plasma cutter to take out some more of the material.  Then I went in with a die grinder to clean it up.  Now with the trans jacked up I was able to get it centered in the tunnel, with at least 1/4" of clearance all around.

Next I tried to bolt on the transmission mount and figure out how that whole thing worked.  I ran into another intereference problem here, with the stud that comes down from the frame bracket that holds the emergency brake cable bellcrank.  In the photo below I've dropped the trans down a little; that stud sticking down has got to go:



This is kind of a problem because I was hoping to use the factory emergency brake cable to activate the emergency brakes built into the rear disc brake kit.  There is no way that bellcrank will fit in there, even with the stud still in place, because the transmission mount is in the way.  I think I'll end up dropping the whole emergency brake cable setup down a little, and fabricating a new stud that welds to the transmission mount, in order to make the emergency brake functional.  Just a little more fabricating  ;)

Finally after cutting the stud I got the transmission and mount up into the car where I wanted it to be, centered in the tunnel and as high as possible.  I measured the angle of the back of the trans and it was exactly the same as the angle of the 8" rearend yoke that is still in the car, so that was OK.  I wish the trans angle had been a little higher, but I can compensate for that when I install the 9" axle housing this afternoon.  With the trans mount in position it was obvious now how it had to be attached to the car, and it was bolted through the floorboards!  What a Mickey Mouse deal that is!  For now I decided to just install it, but it will need some serious bracing in order for me to be comfortable driving the car, especially since the floorpans in this car were replaced at some point, and I don't know what kind of the job the installer did.  I'd hate to rely on a poorly welded in floorpan, or any floorpan for that matter, to support the back of the trans.

Here's a picture of the transmission mount installed from underneath, and then one of the interior of the car with the transmission up into position.  Based on how well it fit through the stock opening, I think it will fit my console just fine:






Thinking ahead, my idea of splitting the spacer I need in two and installing it from under the car is obviously not practical given the transmission position in the tunnel; access to the top bolts is very limited.  So, I'm going to have to pull the engine and trans back out to install the spacers.  No big deal, though, its only about an hour to get it out and another hour to get it back in, so I think installing the spacers and replacing the engine and trans is an evening project.  Also, yesterday before I bolted the transmission on the engine, I measured the pilot shaft diameter, and it was 0.678".  This was pretty close to the numbers Jared had mentioned in his post earlier.  Why would my stock pilot bushing be so loose on the pilot shaft?  I went digging around for another one, and sure enough it fit very well.  Jared, I think you called it with the worn pilot bushing; I think the first one I tried had been used on the dyno quite a few times, and was probably just worn enough to make it feel loose.  So, when I get the engine and trans back out to add the spacers, I think I will probably pull the clutch off and replace that Chinese pilot bearing with a stock Ford bushing.  So, maybe its a two evening project  ;D

This afternoon I'll be installing the rear axle housing, getting it angled properly and tacked in position on the spring perches, and then temporarily installing the 9" center section, so I can get a measurement for the driveshaft.  Then the axle housing has to come out, be cleaned and painted, and then assembled with the axles and center section and re-installed in the car.  Also, over the weekend my Y-block pal shamed me into a decision on the springs and Cal-Tracs ("What the hell is wrong with you?  Slapper bars???"), so I guess I'll be ordering that setup tomorrow.  There goes another $1000 ::)  But, then the car will have all new suspension, front and rear, all new disc brakes, and a new engine, trans, and rear end.  It will probably take me another few weeks of screwing around with the details to get it finished, but by the end of the day today most of the hard work will be done.  I'll try to post a quick update later this evening.

« Last Edit: May 25, 2015, 01:11:12 PM by jayb »
Jay Brown
- 1969 Mach 1, Drag Week 2005 Winner NA/BB, 511" FE (10.60s @ 129); Drag Week 2007 Runner-Up PA/BB, 490" Supercharged FE (9.35 @ 151)
- 1964 Ford Galaxie, Drag Week 2009 Winner Modified NA (9.50s @ 143), 585" SOHC
- 1969 Shelby Clone, Drag Week 2015 Winner Modified NA (Average 8.98 @ 149), 585" SOHC

   

machoneman

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Re: 68 Mustang Memorial Day Weekend Thrash
« Reply #47 on: May 25, 2015, 01:37:30 PM »
A weekend project! Holy mother of FE's!  :)

Hey, you may want to replace the heater core now.....just a thought.   
Bob Maag

MustangGT

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Re: 68 Mustang Memorial Day Weekend Thrash
« Reply #48 on: May 25, 2015, 01:49:56 PM »
Jay, the transmission crossmember is not supposed to be bolted through the floor.
I don't have a picture of mine right now but I found a couple of pics online that shows the correct way to do it.
http://www.ronmorrisperformance.com/01hot_new/
The instructions that came with my kit was very clear on this. Are you missing the instructions?

jayb

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Re: 68 Mustang Memorial Day Weekend Thrash
« Reply #49 on: May 25, 2015, 04:32:49 PM »
Thanks for that picture.  No, my kit did not come with instructions  >:(.  Looks like I bolted it up wrong, but to be honest I don't like the way it looks when is bolted up correctly, either.  I'm going to weld some tabs from the frame rail over to the bracket that I have bolted to the floor, and strengthen it that way.
Jay Brown
- 1969 Mach 1, Drag Week 2005 Winner NA/BB, 511" FE (10.60s @ 129); Drag Week 2007 Runner-Up PA/BB, 490" Supercharged FE (9.35 @ 151)
- 1964 Ford Galaxie, Drag Week 2009 Winner Modified NA (9.50s @ 143), 585" SOHC
- 1969 Shelby Clone, Drag Week 2015 Winner Modified NA (Average 8.98 @ 149), 585" SOHC

   

jayb

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Re: 68 Mustang Memorial Day Weekend Thrash
« Reply #50 on: May 25, 2015, 05:25:20 PM »
54 inches center to center with a C6 yoke and 1310 joint.I woke up with baited breath ....horrible.

Too long, need 48-3/4 with a 1350 U-joint.  Must've been the big smelt fry...
Jay Brown
- 1969 Mach 1, Drag Week 2005 Winner NA/BB, 511" FE (10.60s @ 129); Drag Week 2007 Runner-Up PA/BB, 490" Supercharged FE (9.35 @ 151)
- 1964 Ford Galaxie, Drag Week 2009 Winner Modified NA (9.50s @ 143), 585" SOHC
- 1969 Shelby Clone, Drag Week 2015 Winner Modified NA (Average 8.98 @ 149), 585" SOHC

   

MustangGT

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Re: 68 Mustang Memorial Day Weekend Thrash
« Reply #51 on: May 25, 2015, 05:28:21 PM »
Thanks for that picture.  No, my kit did not come with instructions  >:(.  Looks like I bolted it up wrong, but to be honest I don't like the way it looks when is bolted up correctly, either.  I'm going to weld some tabs from the frame rail over to the bracket that I have bolted to the floor, and strengthen it that way.

No problem, Jay.
If you want I can have a look and see if I can find the paperwork that came with my kit, scan them and email to you?
Even though my crossmember have held up nicely for 3 years, you can't beat welding ;)

jayb

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Re: 68 Mustang Memorial Day Weekend Thrash
« Reply #52 on: May 25, 2015, 05:34:47 PM »
Thanks for the offer, but I don't think its necessary.  I actually kind of like the idea that I can move the rear of the transmission up and down those slots.  I want to make sure that the shifter fits correctly with the console, and being able to move the trans up and down may help with that.  Some welded tabs will be an easy addition to those brackets.
Jay Brown
- 1969 Mach 1, Drag Week 2005 Winner NA/BB, 511" FE (10.60s @ 129); Drag Week 2007 Runner-Up PA/BB, 490" Supercharged FE (9.35 @ 151)
- 1964 Ford Galaxie, Drag Week 2009 Winner Modified NA (9.50s @ 143), 585" SOHC
- 1969 Shelby Clone, Drag Week 2015 Winner Modified NA (Average 8.98 @ 149), 585" SOHC

   

427Fastback

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Re: 68 Mustang Memorial Day Weekend Thrash
« Reply #53 on: May 25, 2015, 10:48:53 PM »
When I did the T56 conversion on the Camaro a few weeks ago I got "NO" paperwork on anything...It was a universal x-member that was for the car but I had to look up on the net for a picture as it just didn't make sense..It required redrilling and some cutting..No paper work on the trans or install instructions.I had to use my multi meter to figure which plug was for the reverse lights...Shifter tower bracket required lots of rework as well..

After I got it all figured out I put the one pce (h-pipe)stainless exhaust back up only to have the h-pipe hit the crossmember...I had to cut the exhaust into 6 pcs and then tig it all back together....

Eventually it all works out and takes much longer than planned....

Keep forging ahead Jay....
1968 Mustang Fastback...427 MR 5spd (owned since 1977)
1967 Mustang coupe...Trans Am replica
1936 Diamond T 212BD
1990 Grizzly pick-up

ScotiaFE

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Re: 68 Mustang Memorial Day Weekend Thrash
« Reply #54 on: May 26, 2015, 08:18:16 AM »
With trans mount, the up and down action is great.
Hint. I would fit some stop blocks to the elongated holes when you finally have it
in position. You know it will slip down while a good distance from the tool box. ;)
As always Jay, Great Show.

jayb

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Re: 68 Mustang Memorial Day Weekend Thrash
« Reply #55 on: May 26, 2015, 11:00:05 AM »
Yes, I figured on doing that.  No way it would stay in place with all the normal vibration issues.

Hope my engine sounds as good as yours, Howie...
Jay Brown
- 1969 Mach 1, Drag Week 2005 Winner NA/BB, 511" FE (10.60s @ 129); Drag Week 2007 Runner-Up PA/BB, 490" Supercharged FE (9.35 @ 151)
- 1964 Ford Galaxie, Drag Week 2009 Winner Modified NA (9.50s @ 143), 585" SOHC
- 1969 Shelby Clone, Drag Week 2015 Winner Modified NA (Average 8.98 @ 149), 585" SOHC

   

cobracammer

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Re: 68 Mustang Memorial Day Weekend Thrash
« Reply #56 on: May 26, 2015, 03:47:27 PM »
Hey Jay,

Just out of curiousity, did you get a Lock out solenoid with your kit?  Paul over at Modern Drivelines got me one because the T56 (XL-At least) has 6th gear and reverse really close in the shift pattern.....  Nothing like going 80 MPH on the interstate with that big FE, going to put the car in 6th (overdrive) and accidentally putting it in Reverse  LOL
Jason
2005 Saleen S281 (427 SOHC 2 X 4 EFI swap), T56 Magnum XL 6 speed, 9" Currie rear with 3.89 Gears

jayb

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Re: 68 Mustang Memorial Day Weekend Thrash
« Reply #57 on: May 26, 2015, 11:03:17 PM »
Yes, I did get that solenoid with the trans, plus the wiring harness that plugs into it.  Scary thought, that reverse at 70 MPH scenario...
Jay Brown
- 1969 Mach 1, Drag Week 2005 Winner NA/BB, 511" FE (10.60s @ 129); Drag Week 2007 Runner-Up PA/BB, 490" Supercharged FE (9.35 @ 151)
- 1964 Ford Galaxie, Drag Week 2009 Winner Modified NA (9.50s @ 143), 585" SOHC
- 1969 Shelby Clone, Drag Week 2015 Winner Modified NA (Average 8.98 @ 149), 585" SOHC

   

cobracammer

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Re: 68 Mustang Memorial Day Weekend Thrash
« Reply #58 on: May 28, 2015, 10:43:07 AM »
That would be an "oopsie" moment for sure   ;)
Jason
2005 Saleen S281 (427 SOHC 2 X 4 EFI swap), T56 Magnum XL 6 speed, 9" Currie rear with 3.89 Gears

jayb

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Re: 68 Mustang Memorial Day Weekend Thrash
« Reply #59 on: June 01, 2015, 08:39:58 PM »
Over the weekend, amid a whole bunch of other stuff to do, I got the spring perches welded on the axle housing.  This is the first axle housing I've done in a few years, since I got my big LeBlonde lathe, so I thought I'd chuck it up on the lathe and look at the runout of the tubes after the welding operation:



I had about +/- 0.035" runout on one tube and about +/- 0.050" on the other.  I figured that was close enough; what do you guys think?

Also last week I called Calvert racing for the rear suspension package.  Today was Calvert Christmas:



I think I'll put the leaf springs in tonight...
Jay Brown
- 1969 Mach 1, Drag Week 2005 Winner NA/BB, 511" FE (10.60s @ 129); Drag Week 2007 Runner-Up PA/BB, 490" Supercharged FE (9.35 @ 151)
- 1964 Ford Galaxie, Drag Week 2009 Winner Modified NA (9.50s @ 143), 585" SOHC
- 1969 Shelby Clone, Drag Week 2015 Winner Modified NA (Average 8.98 @ 149), 585" SOHC