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NV4500 Rebuild Questions

And the pictures for Kenny:

Driver side:

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Passenger side:

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Looks like I forgot to take a second shot on the passenger side.

I marked where the bolt holes ended up. At first glance it looks like I was a little bit rotated from where I should have been...

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dyeager535 said:
Pretty sure there is no other P/N. I'm not aware of any variations from this for the 465/hydraulic setup.

If you google 15530202 and look at images, you will see a few pictures. You'll have to follow the links to see if they are actually that part number, and even then, being the internet, can you trust the descriptions? lol

Part number is probably no longer valid, although some places are listing it for ~$300.
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That's what I thought. Which is why I'm confused. If there's no other option, what is it that other folks have been able to do without major headaches? :doah:
 
Does it not look concerning to have the bolt sticking into the sidewall of the tranny?

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I kinda figured this is where I'd wind up at, but it just doesn't look good at all... :doah:
 
I don't think I'd worry about it. That's me. Adapter bellhousing is your only other option, no?
 
dyeager535 said:
I don't think I'd worry about it. That's me. Adapter bellhousing is your only other option, no?
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Yes, AFAIK. Looking back, we would have saved some headache by buying that one, as Larry (and others) originally told us. But I'm doing the project for the fun of piecing the system together. I'm not in any particular need for the project to get finished soon. That makes a huge difference.
 
Also, look into renting a mag drill for the operation. It will make a big difference on getting the holes drilled perpendicular to the surface. The pic above looks like they didn't drill perpendicular so it angled into the side of the transmission.

I would not be concerned with tapping the face of the transmission if you take care to minimize any chance of running into the side of the transmission. However, just a slight rotation of 4-5 degrees the wrong direction could leave you with a hole in the side for oil to leak out.
 
Tranny Swap Questions (turned into Problems...)

So the plan is to drill and tap four holes instead of buying the part that works? What is the cost/labor ratio here?

If the holes get screwed up how much time will you be out when you have to order the right bell housing and now have a transmission with extra holes in it possibly leaking.

I'm not saying don't do it, but I would just track down the correct part.


Also, if the bolts come in through the bell housing how do you check and tighten them if they rattle loose.
 
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Looks like a $400 bellhousing from AA, then whatever it costs to buy the "adapter" plate to run the hydraulic slave.

Agree on bolts on inside, loc-tite or safety wire would be high on my priorities on install with the bolts going in that way.
 
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I wouldn't hesitate to drill and tap the four holes. Locktite is cheap.

Martin
 
That's why I often say that the NV4500 swap takes a lot of thought...any way you look at it, the cost is going to be there (unless you absolutely steal the 4500 itself) and unless you have gearing that requires it for freeway running, the cost of the swap will buy a LOT of gas, even at todays prices. Probably recouped fairly easily if you keep the truck a long time and do a lot of freeway driving, not so much if it's occasional.

If you have or can find the 465 bellhousing, it saves substantial cost and effort. But since there is nothing that will just "bolt up", it's going to take time, money, or both.
 
Advance Adapter Bell housing and adapter plate for hydraulic slave was $400 shipped.
 
No idea what the slave adapter runs, but according to their site right now, it's $400 for just the bellhousing. Get it on sale, or before it went up?

It's not really a ridiculous price, having something made like that is going to be $$ for them, and it's a bolt up deal. Just a figure you have to consider when thinking about this swap.
 
dyeager535 said:
That's why I often say that the NV4500 swap takes a lot of thought...any way you look at it, the cost is going to be there (unless you absolutely steal the 4500 itself) and unless you have gearing that requires it for freeway running, the cost of the swap will buy a LOT of gas, even at todays prices. Probably recouped fairly easily if you keep the truck a long time and do a lot of freeway driving, not so much if it's occasional.
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I am thinking through this swap primarily because I'm looking for a fun project. Piecing together the "impossible" combination of parts is the fun part. I choose this tranny for several small reasons, but one of them was finding this one for $200. I'm looking for O/D as my 6.2 would otherwise require very steep gearing to produce the engine speeds that I desire. Actually, I would like steeper gearing AND overdrive, but I'm not wanting to tear into the gearsets right now.

As I have two unhappy automatics right now, my plan was to practice the swap on the Blazer before doing the swap on the Suburban. But, seeing how unmotivated I have been lately, and how tired I've gotten of the non-locking torque converter, I'm now leaning toward doing the Suburban with this set of parts. Road trips have been less fun at high engine speeds. :doah:
 
82355 said:
Richcz28 said:
Ouch... $400
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I can drill a lot of holes for $400.......

Martin
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I know! This is what drives me to try drilling it, scary as it initially seems. :eek1:

Although, looking back, $400 isn't too much more than what the existing bell housing cost. If I was trying to finish the project quickly I wouldn't hesitate to try that next time. Unless I already had a bell housing lying around (which I didn't).

Also, can't I reasonably easily run a throwout-bearing-style slave cylinder and blow off the whole issue? I don't like internal slaves (one thing I have against the NV3500), but it seems like it would solve a few problems in this case... :whistle:
 
dyeager535 said:
No idea what the slave adapter runs, but according to their site right now, it's $400 for just the bellhousing. Get it on sale, or before it went up?

It's not really a ridiculous price, having something made like that is going to be $$ for them, and it's a bolt up deal. Just a figure you have to consider when thinking about this swap.
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When you go to the cart and use the drop down menu to pick which engine, the price drops to $366 (for all engine choices). I bought mine from summit for free shipping at same price. The adapter that allows you to run stock hydraulics is around $40.

Prices for used bells was around $200. A little more dough for the advance bell but worth it for me.
 
Mikey von said:
When you go to the cart and use the drop down menu to pick which engine, the price drops to $366 (for all engine choices). I bought mine from summit for free shipping at same price. The adapter that allows you to run stock hydraulics is around $40.

Prices for used bells was around $200. A little more dough for the advance bell but worth it for me.
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Yeah. If I wasn't curious about the older bell housing I would definitely have gone that route.
 
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