12 valve cummins swap into suburban
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Diesel Fan
Joined: Oct 2013
Posts: 41
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12 valve cummins swap into suburban
Ok I have some questions about doing a 12 valve swap into my 1997 suburban.
Can I use my suburban wire harness/computer/ do I need my computer.
Can I use my master cylinder/brake booster/powersterring pump.
What will I need to do this swap. Any thing I'm leaving out any help is great Thanks
Oh and if I go with a manual trans do I need to get a new steering coluame(it's a automatic)
Can I use my suburban wire harness/computer/ do I need my computer.
Can I use my master cylinder/brake booster/powersterring pump.
What will I need to do this swap. Any thing I'm leaving out any help is great Thanks
Oh and if I go with a manual trans do I need to get a new steering coluame(it's a automatic)
Last edited by waystro; Jan 26, 2014 at 10:16 PM.
Diesel Enthusiast
Joined: Dec 2009
Posts: 130
Likes: 0
>>Can I use my suburban wire harness/computer/ do I need my computer.
You'll need to retain some of it so you can have a functioning dashboard.
>>Can I use my master cylinder/brake booster/powersterring pump.
The Cummins has a vacuum pump that's adequate to supply the brake booster. However, a hydrooost system would a nicer way to go.
Use the Dodge power steering pump.
>>What will I need to do this swap. Any thing I'm leaving out any help is great Thanks
Are you going to be putting on a lift kit? Keeping it stock height is possible but there might be interference problems with the front differential (if your Suburban is 4x4). Yes there are ways around this issue.
>>Oh and if I go with a manual trans do I need to get a new steering coluame(it's a automatic)
You won't need another column if you're going with a manual transmission. Just remove the shifter handle off your current column.
What gears do you have in your Suburban?
You'll need to retain some of it so you can have a functioning dashboard.
>>Can I use my master cylinder/brake booster/powersterring pump.
The Cummins has a vacuum pump that's adequate to supply the brake booster. However, a hydrooost system would a nicer way to go.
Use the Dodge power steering pump.
>>What will I need to do this swap. Any thing I'm leaving out any help is great Thanks
Are you going to be putting on a lift kit? Keeping it stock height is possible but there might be interference problems with the front differential (if your Suburban is 4x4). Yes there are ways around this issue.
>>Oh and if I go with a manual trans do I need to get a new steering coluame(it's a automatic)
You won't need another column if you're going with a manual transmission. Just remove the shifter handle off your current column.
What gears do you have in your Suburban?
Thread Starter
|
Diesel Fan
Joined: Oct 2013
Posts: 41
Likes: 0
>>Can I use my suburban wire harness/computer/ do I need my computer.
You'll need to retain some of it so you can have a functioning dashboard.
>>Can I use my master cylinder/brake booster/powersterring pump.
The Cummins has a vacuum pump that's adequate to supply the brake booster. However, a hydrooost system would a nicer way to go.
Use the Dodge power steering pump.
>>What will I need to do this swap. Any thing I'm leaving out any help is great Thanks
Are you going to be putting on a lift kit? Keeping it stock height is possible but there might be interference problems with the front differential (if your Suburban is 4x4). Yes there are ways around this issue.
>>Oh and if I go with a manual trans do I need to get a new steering coluame(it's a automatic)
You won't need another column if you're going with a manual transmission. Just remove the shifter handle off your current column.
What gears do you have in your Suburban?
You'll need to retain some of it so you can have a functioning dashboard.
>>Can I use my master cylinder/brake booster/powersterring pump.
The Cummins has a vacuum pump that's adequate to supply the brake booster. However, a hydrooost system would a nicer way to go.
Use the Dodge power steering pump.
>>What will I need to do this swap. Any thing I'm leaving out any help is great Thanks
Are you going to be putting on a lift kit? Keeping it stock height is possible but there might be interference problems with the front differential (if your Suburban is 4x4). Yes there are ways around this issue.
>>Oh and if I go with a manual trans do I need to get a new steering coluame(it's a automatic)
You won't need another column if you're going with a manual transmission. Just remove the shifter handle off your current column.
What gears do you have in your Suburban?
Diesel Wrench
Joined: Dec 2010
Posts: 549
Likes: 20
From: Salt Spring Island
Your 4L80E will need a controller. I am unsure if the standalone controller from 91-95 diesel vans will work with a later 4L80E.
IMO, get a Dodge/cummins donor truck and swap the entire powertrain. Should be able to rustle something up for $1-2k if you look hard.
4.10 is a deep ratio to run with the cummins due to the lower rpm range (i.e. 3000max) Not ideal unless you are towing large, or wish to run huge tires. Another reason to find a parts truck. Most are 3.54.
IMO, get a Dodge/cummins donor truck and swap the entire powertrain. Should be able to rustle something up for $1-2k if you look hard.
4.10 is a deep ratio to run with the cummins due to the lower rpm range (i.e. 3000max) Not ideal unless you are towing large, or wish to run huge tires. Another reason to find a parts truck. Most are 3.54.
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