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Hotrodders Bulletin Board > Journal > M&M CUSTOM's Journal

View M&M CUSTOM's profile Entries: 48
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11-19-2009 03:15 AM 1988 Suburban TH-700R4 to SM-465 Swap.
Photo 1 shows my third assistant on this project, my 10 year old daughter Sarah, she doesn't really get into the dirty parts of working on vehicles- but she certainly likes to come out and watch and help with small things like she did tonight. Thank You Sarah.

Photo 2 is a quick shot of the chrome skulls rear-view mirror my son Troy bought me for the Suburban. I need to change the windshield before getting the Suburban back on the road again, but when that's in this is going on it.

I also got another idea in my head to possibly put a tilt front clip on the Suburban, I already have the split fenders to do it with, I'll just wait until next spring and see if that idea stays with me. I'll post a pic or 2 of that stuff later when I get around to wrangling up a couple pieces of it. I am still considering swapping the 4X4 parts under the Suburban, next summer will also tell if I decide to do that too.

1988 Suburban TH-700R4 to SM-465 Swap.
(click photo to enlarge)
1988 Suburban TH-700R4 to SM-465 Swap.
(click photo to enlarge)
  [Entry #48]

11-19-2009 03:04 AM 1988 Suburban TH-700R4 to SM-465 Swap.
Photo 1 shows another problem I had to unexpectedly deal with at the near last minute, the lower bracket that retains the steering column to the firewall. I hadn't noticed until getting ready to re-install it that the threads on the left stud and nut had stripped, I decided against re-tapping the nut and running a die to clean up the stud threads- but made the extra effort to remove that stud and weld a new one in it's place, similar to what I had to do to the pedal support bracket studs.

Photo 2 shows the end result of today's efforts, the entire driver side interior part of the job is finally finished and I can move on to finally work under the Suburban and get this project wrapped up.

Photo 3 shows the driver side interior as finished with both the shifter for the transmission coming up from the floor, and the shifter on the steering column that needs to remain for now for the reverse lights to work, until I get an afternoon in the future to do the electrical modifications needed to fully use the reverse switch in the transmission for it's intended purpose.

1988 Suburban TH-700R4 to SM-465 Swap.
(click photo to enlarge)
1988 Suburban TH-700R4 to SM-465 Swap.
(click photo to enlarge)
1988 Suburban TH-700R4 to SM-465 Swap.
(click photo to enlarge)
  [Entry #47]

11-19-2009 02:52 AM 1988 Suburban TH-700R4 to SM-465 Swap.
Photo 1 shows the bracket and all associated parts necessary to raise it 1 inch to correct the angles of raising the TBI 1 inch.

Photo 2 shows the bracket fully re-installed on the intake manifold and gives an idea of the location of the parts in the previous photo.

Photo 3 shows the same approximate location between the camera and the throttle cable and in comparison is the same angle as found on the completely stock TBI equipped truck I have sitting next to the Suburban for my next project.

1988 Suburban TH-700R4 to SM-465 Swap.
(click photo to enlarge)
1988 Suburban TH-700R4 to SM-465 Swap.
(click photo to enlarge)
1988 Suburban TH-700R4 to SM-465 Swap.
(click photo to enlarge)
  [Entry #46]

11-19-2009 02:42 AM 1988 Suburban TH-700R4 to SM-465 Swap.
Photo 1 shows the throttle cable / transmission TV (Throttle Valve) cable mounting bracket that cause this entire mess in the first place, I modified the TBI unit while I rebuilt it and added the 1 inch spacer, but failed to raise the bracket to correct the angles of the cables as well, I remember I had awesome throttle response and the power of the engine was quite a bit better, but the idle was raised by the bind in the throttle cable, and the transmission shifted much harder and at higher RPM's.

Photo 2 shows the angle at which the problems all occurred with the TBI raised 1 inch and the cable bracket at stock height.

Photo 3 shows the stock TBI at stock height as mounted in my 1987 Chevy truck for reference.

1988 Suburban TH-700R4 to SM-465 Swap.
(click photo to enlarge)
1988 Suburban TH-700R4 to SM-465 Swap.
(click photo to enlarge)
1988 Suburban TH-700R4 to SM-465 Swap.
(click photo to enlarge)
  [Entry #45]

11-16-2009 05:29 PM 1988 Suburban TH-700R4 to SM-465 Swap.
Photo 1 shows the new assembly in place, the pushrod hooked up to the bellcrank and the original boots slid down just before starting to work on the steering column re-installation.
YES- I know there is yellow electrical tape on the boot, this is to close the holes worn through it for a while until I can afford to purchase new boots, which I found to be nearly $40 for the pair for the correct replacements, of which I don't have right now. This will work well enough for now.

ALSO, if you notice the welds on the studs that mount it to the firewall and power brake booster bracket on the outside of the firewall, this is because I broke the 3 tiny original spot welds on one of the studs while running a nut on it to clean up the threads. They welded up just fine with 75 amps and a 6013 rod with the good old Lincoln AC arc welder and a few minutes of demonstrating how to weld to both my boys.

Photo 2 shows yet again, I am working in the dark of night, this is the bellcrank with both pushrods installed, and the pedal freeplay length adjusted to 1-1/8 inch, the adjustable lower pushrod that completes the link between the bellcrank and the clutch fork is out at about 90% of it's total adjustment range, I also feel that it's a bit small on the fork end for it's intended purpose, so I just may end up making a new and improved one later on, this is just using stock readily available parts to make this swap work.

Not the best picture, but my older son Troy wanted me to take this shot and post it here in my journal, as he was under the vehicle doing the pushrod adjustment while I pushed and measured. He also made all the necessary connections of parts in that area during the course of the evening. Now he wants to learn how to drive a manual transmission.

Photo 3 AGAIN, shows the upper pushrod through the hole in the floor, this is where the factory had the floor pre-marked for this sort of application. For future reference I would prefer the boot to be mounted with the screws at a 90 degree angle to the center line of the vehicle, and not at a 45 degree like the factory did it. I will also make sure to move the 2 inch hole toward the vehicle center line 1/2-inch, as I did not fully clear a welded floor support brace to the lower left of the center of the hole, and this will also center the pushrod in the hole for better boot fitment.

1988 Suburban TH-700R4 to SM-465 Swap.
(click photo to enlarge)
1988 Suburban TH-700R4 to SM-465 Swap.
(click photo to enlarge)
1988 Suburban TH-700R4 to SM-465 Swap.
(click photo to enlarge)
  [Entry #44]

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