Sm465 swap

[chevyman98]

Thinking of getting rid of my 83 k5 so I can pay some bills and would be more beneficial to keep the truck then have 2 suvs. Just swapped the sm465 in it but had a 700r4 and thought about taking it out and putting it into the 92 and putting a 700r4 back in the blazer out of my 92. What do yall think?

 

[Chewy1576]

If you like the old 4 speed, stick with it. It's a solid, reliable gearbox. Not sure what kind of driving you do, but not having OD could be something to think about.

 

[chevyman98]

Mainly offroad not a lot of highway. When I do I usually drive 65mph. The wife tells me I drive like a grandpa lol. I'm in for more reliability and since the parts are avaliable. Planned on SAS but idk. Really would like a crew cab. Only thing don't think I'll be able to use the tcase out of the 92 because of spline count

 

[Chewy1576]

I'm having the SM465/NP231 in my '90 swapped with an NV4500/NP231 from a '92 as I type. Same low 1st gear, just as strong, and has an OD 5th gear.


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[Eskimomann209]

EDIT
im an idiot


does anyone know how the sm465 mounting length base compares to the nv4500 or the 4l60e?

 

[Eskimomann209]

im about two weeks from pulling out my 4l60e and replacing it with the sm465 or the sm420
i have both and im gunna flip a coin on which one i choose
i mainly do in town driving

SAS
35 in tires
roughly a foot worth of lift
divorced np205
so you know my opinion on what ya should do

 

[Chewy1576]

My NV4500 lined up with the SM465 mount and crossmember exactly.


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[chevyman98]

Nv4500 I thought was a little longer. When I did the sm465 it was a direct swap with the 700r4, tcase drive lines and cross member all same spot as 700r4

 

[Chewy1576]

Overall yes it is slightly longer, but well under an inch. Everything still fit together.


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