Porterbuilt install help

[MURPH82]

I am currently mocking up my engine and transmission. It's a SBC with a 700R4. I am running into 2 problems, first my oil pan hits the rack and second how high should the transmission crossmember be in the frame. With my transmission at 5 degrees the mount is almost at the top of the frame. I almost forgot it's a 84 with the extreme front.

Thanks

[lolife99]

The trans is pointing DOWN 5 degrees and the frame rails are level with the ground front to back and side to side?

[MURPH82]

Yes with the frame laying on the ground I can't get the trans to 5 deg without the engine hitting the rack.
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[lolife99]

Seems like if you lowered the back of the trans the front of the oil pan would pivot up.
Can you post pics?

[MURPH82]

I'm actually raising it to get to 5 deg
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[Rochlow]

Steeds sells offset bushing to drop you rack down 1/4". You will have to have them machined down to be the same diameter as the bushing holes on the rack. But, it worked for me.

[MURPH82]

Originally Posted by Rochlow

Steeds sells offset bushing to drop you rack down 1/4". You will have to have them machined down to be the same diameter as the bushing holes on the rack. But, it worked for me.

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[MURPH82]

So you had the same problem ?
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[lolife99]

Originally Posted by MURPH82

I'm actually raising it to get to 5 deg
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I wish you could post a pic.
Your trans tailshaft should be at -5 degrees (5 degrees down) and the rearend should be at +5 degrees (5 degrees up).
I can't imagine the trans crossmember needs to be at the top of the frame rails.

[MURPH82]

Originally Posted by lolife99

I wish you could post a pic.
Your trans tailshaft should be at -5 degrees (5 degrees down) and the rearend should be at +5 degrees (5 degrees up).
I can't imagine the trans crossmember needs to be at the top of the frame rails.

Not sure how to post pictures but I am measuring the angle off the tailshaft.
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[DLW]

You can email me the pics and I can post them for you if you want danwade66@gmail.com.

Also, your trans tail shaft is pointing down to the ground 5*? You running the level 3?

Send me the pics and include some of your motor mounts, oil pan and trans and I will post them up for you.

[MURPH82]

Originally Posted by DLW

You can email me the pics and I can post them for you if you want danwade66@gmail.com.

Also, your trans tail shaft is pointing down to the ground 5*? You running the level 3?

Send me the pics and include some of your motor mounts, oil pan and trans and I will post them up for you.

I just sent you over some photos. Yes I am running the level 3 and if I go above 6-7 degrees the oil pan contacts the rack.

[MURPH82]

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[DLW]

Here is the photo's MURPH sent. The trans crossmember seems fine in this photo but I assume it needs to go up a bit further? Can't really rell whats happening with your R&P and oil pan though.

[MURPH82]

Originally Posted by DLW

Here is the photo's MURPH sent. The trans crossmember seems fine in this photo but I assume it needs to go up a bit further? Can't really rell whats happening with your R&P and oil pan though.

I'll resend you the pictures where the oil pan is contacting the rack
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[DLW]

The rest of your pics ..hopefully someone can chime in here with some more help, maybe even Nate. I have the mild and an LS3 so not seeing your issue. It would seem your engine either needs to be raised or a different oil pan.

[MURPH82]

I feel that either pan or rack is the problem. I went up to the shop today and I can get the carb mounting surface to 3.5deg and I have just a lil daylight between the rack and oil pan. I wonder if the uninterrupted rack is a little thinner than the rack I have. The motor is a 383 so I don't know if there is a smaller oil pan I can use and it still clear the rack.

[Rochlow]

Originally Posted by MURPH82

So you had the same problem ?
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The most I could get my transmission angle down was 8-9 degrees without the oil pan hitting the rack. Nate made engine mounts to raise the engine position 1/4" and 1/2".. 1/2" made the trans yolk hit the cab floor, so I used the 1/4". I also bought steeda bushings to drop the rack another 1/4". I dropped the trans crossmember to the bottom of the frame and used a spacer to to make up the difference. Still the best I could do was 6 degrees down.

I'm still working on the drive line issues with Nate

[MURPH82]

Originally Posted by Rochlow

The most I could get my transmission angle down was 8-9 degrees without the oil pan hitting the rack. Nate made engine mounts to raise the engine position 1/4" and 1/2".. 1/2" made the trans yolk hit the cab floor, so I used the 1/4". I also bought steeda bushings to drop the rack another 1/4". I dropped the trans crossmember to the bottom of the frame and used a spacer to to make up the difference. Still the best I could do was 6 degrees down.

I'm still working on the drive line issues with Nate

What brand rack and pinion are you using. If I cleared the rack I think I would be ok. It's just frustrating because I am in a crunch to get done. I also wonder if there are any other oil pan options ?
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[lolife99]

Originally Posted by MURPH82

What brand rack and pinion are you using. If I cleared the rack I think I would be ok. It's just frustrating because I am in a crunch to get done. I also wonder if there are any other oil pan options ?
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There are 2 different oem oil pans.
You might contact one of the aftermarket oil pan manufacturers and see if they can help.

[Rochlow]

Originally Posted by MURPH82

What brand rack and pinion are you using. If I cleared the rack I think I would be ok. It's just frustrating because I am in a crunch to get done. I also wonder if there are any other oil pan options ?
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I'm using the rack supplied by Nate

[DLW]

Should be the unisteer R&P then, that's what I got.

Give Nate a call, he is really good about responding and helping. He would even send you some custom mounts if necessary. I dealt with him a lot and he was great at helping or resolving any issues I had.

[MURPH82]

I am considering just leaving the pinion at 7 deg and running a double cardan joint drive shaft or putting a washer on the rack to move it forward just a hair.

[DLW]

Could try something like was mentioned above like these http://www.summitracing.com/parts/sd...4011/overview/

I would still check with Nate, moving things messes with geometry.

[Rochlow]

I spoke with Nate about the above process. He believed that the amount that the rack was going to be moved would not create any noticible geometry issues.