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Little Gibby's 45 MB

An electric pusher fan is not nearly as effecient as a puller fan. If there's clearance, you might recess the radiator entirely within the grill (or move the grill forward) and use a puller fan.

OR...

The driveshaft, albiet short, angles look pretty damn good already. Why not leave the motor where it is, run the shorter driveshaft, and use a puller fan.

because...

It'll be easier to solve a (potential) overheating problem now. As it is, you're already limited on the size of the radiator. By limiting the size of the cooling fan also, you're really really limited the amount of heat you will be able to dissapate. And the only way to increase cooling is by increasing the size of the radiator (which you cannot) or pulling more air thru the smaller radiator.
 
wheelinjp said:
damn there must be a shortage of old school parts for sale anymore? that sm 420 hangs pretty low. also I dont know what was wrong with it, but the only rockwell I ever had I replaced with an np205 cause the rockwell wouldnt go into high range, stuck in low. I had to drive it home from issaquah to covington like that in a 69 suburban. haha. Looks like you are plugging away at it.
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One downfall to those trannys--tall and narrow..
 
TreeClimber said:
An electric pusher fan is not nearly as effecient as a puller fan. If there's clearance, you might recess the radiator entirely within the grill (or move the grill forward) and use a puller fan.

OR...

The driveshaft, albiet short, angles look pretty damn good already. Why not leave the motor where it is, run the shorter driveshaft, and use a puller fan.

because...

It'll be easier to solve a (potential) overheating problem now. As it is, you're already limited on the size of the radiator. By limiting the size of the cooling fan also, you're really really limited the amount of heat you will be able to dissapate. And the only way to increase cooling is by increasing the size of the radiator (which you cannot) or pulling more air thru the smaller radiator.
Click to expand...

Here is my take on it.

Driveshaft--3 1/2" is 3 1/2" that can greatly benefit the rear driveshaft. Moving the motor forward that distance will still give me the option to run a puller if need be but with more work on the grill.

The 3.8's are not known for being heat hogs and there is no inner fenderwells to trap any heat. I just don't see a heat issue if a puller is used.
 
Ok my second attempt failed to get tabs for the harness's so I went and just made my own and burned them in.

gmb208.jpg


gmb209.jpg
 
crash said:
Never seen a 465 with that style of bell housing.
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I would go with SM465.....you would have to post a pic of the driver side before i would confirm.

Same bellhousing in my jeep....you can use the older (in my experience) better starter that bolts into the bellhousing. I have 1 or 2 more in shop somewhere.

That bellhousing was used in 2wd applications where the tranny mounts where on the bellhousing and the SM465 just hung there. (one style of its use)
 
crash said:
So is the bolt pattern on the tranny side for the bell housing the same from a 420 to 465?
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Advanced Adaptors carrys a bellhousing for both but the part number are different. I was assume that the 420 and 465 have different bolt patterns based on that info.

I am pretty sure that I saw a 420 stamped on that transmission.

This did not come out of a 2WD, it came out of a 4wd setup. This was pulled from the truck just before I picked it up.
 
Gibby said:
Advanced Adaptors carrys a bellhousing for both but the part number are different. I was assume that the 420 and 465 have different bolt patterns based on that info.

I am pretty sure that I saw a 420 stamped on that transmission.

This did not come out of a 2WD, it came out of a 4wd setup. This was pulled from the truck just before I picked it up.
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I will be out in the shop tonight dale and I will try to get claification on the tranny--oh--don't watch the web cam because it doesn't work :haha::haha::haha::haha:
 
If the bolt patterns are tha same it could still have the wrong size hole in the middle.

some of the bells had a few different bolt patterns drilled in them.

Too bad I just got rid of the hydro bell for a 465 that I had.

That is a 465 tranny, not a 420. Deffinatley not a 420. The 420 has one pto plate and opposite of the pto plate on the other side is a huge bulge in the bottom/side.
A 465 has a pto plate on both sides.
 
Got the tie rod measurement to bunk and should have that mid next week. Once I get that I can get the ram done :awesomework:
 
crash said:
So with basically the frame now prepped and ready It was time to work on the engine mounts. So I got the motor sitting right where I wanted it and bolted the Novak mounts to the motor. This is where I started scratching my head ..

gmb14.jpg


Here you can see where the mount sits to the frame rail. Well with the way Novak built these mounts in order to use the frame side of the mount---the motor would have to be another 2.5" higher :wtf: .

gmb15.jpg



That aint going to cut the cheese, no way in heck. I really like the motor placement and raising it is going to make the COG crappy and the need to hack the heck out of the tub for the tranns/t-case to pop thru. Not going to happen. Nooooooo way :;
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:redneck::redneck::haha::haha::hi:
 

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