5spd from a 95 into a 85

[72c20customcamper]

I have a line on a 5spd in a 95 4x4 . I was wondering how difficult it would be to install in my 85 the 85 has a 700r4 with a 208 transfer . Pretty sure the 95 has a hydraulic clutch but not sure of anything else . Easy to do or a big chore ?

[kipps]

Is the 5-speed an nv3500(aluminum case with integral bellhousing) or a nv4500(iron case with a bolt-on bellhousing)? The nv4500 is the better-regarded transmission of the two. The fitment is identical between the two. Same length, same shifter location, same output splines, etc.

1995 is the last year with the low-mount passenger-side slave on the nv4500. This slave comes uncomfortably close to the squarebody passenger-side front driveshaft. If you have a sizeable lift on the truck, the risk of colliding the driveshaft with the slave is lessened. A 92-95 nv4500 can be easily fitted with a 5.125" Advance Adapters bellhousing to move the slave to the driver's side. A 92-95 nv4500 can also be modified to fit a sm465 bellhousing, since both have the same 5.125" center bore. The nv4500 face needs to be drilled and tapped for rearward facing bolts, if you do this. The nv3500 doesn't have a removable bellhousing, so you can't easily move the slave out of the way of the front driveshaft. From 1996 to 2007, the nv4500 used an internal slave, so the driveshaft clearance problem doesn't exist. I don't know when or if the nv3500 switched to an internal slave. It was likely around 1996, but I can't guarantee that.

Aside from the slave location problem, you'll also have a spline count mismatch on the np208 transfer case. The np208 was available with two different input shafts. It could be had with a 27-spline shaft when bolted to a 700r4 like yours. It also could have come with a 32-spline shaft. You'll need the 32-spline input shaft in order to bolt that np208 to either the nv3500 or the nv4500.

[72c20customcamper]

So it’s not all that bad . See what I can get the trans for I believe it’s the 4500 but until I look at it I won’t be positive .

[Getter-Done]

The piece in the transfer case that needs to be changed,
Can be purchased at Torque King used.
Link: https://torqueking.com/product/55500...e-input-shaft/

Or if you have or can find a 208 that was behind a SM465.
It will have the 32 splined input shaft.

[72c20customcamper]

Bookmarked the Torque king site . Really want to get rid of the auto

[franken]

Do you have the parts to convert to a clutch pedal? Then there's the linkage, etc. or hydraulic master and slave to operate the clutch. Do you have a flywheel and clutch? Is there a hole in the crank machined for a pilot bearing?

There are lots of questions when moving from an auto to a manual so I'd say it's not so easy.

[kipps]

Originally Posted by franken

Do you have the parts to convert to a clutch pedal? Then there's the linkage, etc. or hydraulic master and slave to operate the clutch. Do you have a flywheel and clutch? Is there a hole in the crank machined for a pilot bearing?

There are lots of questions when moving from an auto to a manual so I'd say it's not so easy.

Weren't all the SBC and BBC engines machined for a pilot bearing? There used to be rumors of 5.3 LS engines not being machined for such, but I've never run across any credible accounts of such yet. Anyone who wants to bolt a 5.3 to a manual seems to have no trouble doing so.

To the OP -- There's several different routes you could go on clutch linkage. One option is to use the 73-84 mechanical clutch pedal and related linkage. Another option, is to use either the 85-87 bell, pedal, and hydraulics, or to use an Advance Adapters bell, and combine that with the 85-87 pedal and hydraulics. A third option is to use a factory GM nv4500 bell, and combine the GM nv4500 slave with the 85-87 pedal and master.

The 85-87 master can be adapted to -3AN hose using the 12x1.0 fitting from the drop down menu here. https://ormebrothers.com/products/me...pter-dual-seat

Any nv4500 or nv3500 internal or external slave can be adapted to -3AN hose using a Russell 640281 fitting.

[72c20customcamper]

Originally Posted by franken

Do you have the parts to convert to a clutch pedal? Then there's the linkage, etc. or hydraulic master and slave to operate the clutch. Do you have a flywheel and clutch? Is there a hole in the crank machined for a pilot bearing?

There are lots of questions when moving from an auto to a manual so I'd say it's not so easy.

Never had a problem going from auto to 4spd with the crank not having a pilot hole . Flywheel and clutch would be new anyway
Plenty of aftermarket or oem options for the clutch pedal. I’m sure I could modify the peddles from the 95 to fit the 85

Going today to look at the unit . Friend has it as he just parted out the truck . Transfer case comes with it

[Getter-Done]

That would be a Plus with the transfer included.

Maybe now just Driveshaft modification?

My brother has one of these transmissions in storage.

I have tried to buy it for years.
I finally decided, He going to keep it

[kipps]

Originally Posted by Getter-Done

That would be a Plus with the transfer included.

The 1995 transfer case won't be of any use when swapping into a 1985. It drops on the wrong side.

[Getter-Done]

Originally Posted by kipps

The 1995 transfer case won't be of any use when swapping into a 1985. It drops on the wrong side.

That's right

I remember that now I am Reminded

[44th Miss Inf]

I ran a 93 external slave in my stock height 82 for over 10 years before I sold the truck and never had an issue. I used and abused the truck on the farm also, not just a pavement cruiser. As long as your front springs aren’t worn out, you should have no problem.

Did my swap in the 90s using 85 up pedal and master and adapted to use the early slave

Your truck being an 85 should have the indention in the transmission hump for the sm465 cutout. If I remember right, you can go 3” behind that to cut your shifter hole.