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  #1  
Old 03-14-2005, 07:06 PM
ThePIGSmith
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Did GM ever install a manual transmission behind a 6.2?
If so, what model unit was installed? 4 Speed? 5 Speed?

If not and I wanted to drop a 6.2 (or 6.5) in a 4X4 truck, what manual tranny would you recommend?
NV4500? (very pricey)
  #2  
Old 03-14-2005, 09:02 PM
john8662
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Yes, GM put a manual behind the 6.2. I belive it was an SM465 I don't think that they put a NV4500 behind a 6.2. The Sm465 was a 4 speed overdrive transmission, quite odd. I'm not a big fan of manual transmissions behind the 6.2, mainly because every 6.2/6.5 that I've torn apart that had a standard behind it had cracked main webs, I don't know if that is a coincidence or not..

It's possible to install a manual though.
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Old 03-14-2005, 09:10 PM
84 Convert 84 Convert is offline
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The most common was the Sm 465 4-sp w/granny gear. Also used, but MUCH less common was the NP A-833OD (option code MM7) which has an OD for 4th. I wouldn't recommend the latter for much towing as it is a derivative of the 4-sp that went in late '60's Mopar muscle cars (Mine hasn't liked the power of the 454 pulling the weight of the truck). Later on, there was a Getrag 5-sp, but I haven't heard much good about it. After that came the NV-4500, the best of all in my book.

Hope this helps!

Gregg
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Did they make a lot of these in '84??

'84 K30 CC DRW 6.2 4911 pump,6.5 injectors, SM 465, NP205, 4.10's. seats from a Y2K CC. ongoing removal of ugly parts. '93 6.5TD turbo system.

'84 K2500 6.2 to 454 back to 6.2, np a 833 O/D, 3.73 255/85R16
As of 5-31-06 the 454 left my posession in exchange for a 6.2!! Install complete. 7/18/07 motor blown...where's that BB??

'84 c10 Sub
  #4  
Old 03-14-2005, 09:16 PM
84 Convert 84 Convert is offline
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Hey John, looks like we replied at nearly the same time! I just finished re-ringing the motor in my crew cab and had the block magged. Found no cracks! So there's one for the books (maybe the only one!)

Gregg
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Did they make a lot of these in '84??

'84 K30 CC DRW 6.2 4911 pump,6.5 injectors, SM 465, NP205, 4.10's. seats from a Y2K CC. ongoing removal of ugly parts. '93 6.5TD turbo system.

'84 K2500 6.2 to 454 back to 6.2, np a 833 O/D, 3.73 255/85R16
As of 5-31-06 the 454 left my posession in exchange for a 6.2!! Install complete. 7/18/07 motor blown...where's that BB??

'84 c10 Sub
  #5  
Old 03-14-2005, 10:43 PM
jcomp jcomp is offline
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John, what is your source for the SM465 having overdrive? It is my understanding that 4th gear is 1:1.
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1983 K5 Blazer, bored 6.2, 4911, 6.5TD heads and injectors, Gear drive, Banks system, Dual t-stats w/ high flow water pump, D60, 14BFF, Rear Disks, 4.10s, 37\" Swampers, Warn M8274-50, Bad paint and almost no interior
  #6  
Old 03-15-2005, 06:12 AM
john8662
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jcomp,

NP A-833OD is what I had meant for the manual tranny that had the OD. 84 Convert corrected me on that. I knew of the 465, had made the assumption that it was the 4speed I've seen in these trucks. Sorry guys, bad info.
  #7  
Old 03-15-2005, 09:17 AM
jackrabbit jackrabbit is offline
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I have a 85 6.2 that had the 4sp with OD. I replaced it with the NVG4500.

The orginal trans was replaced 2 times ( I was told that the bearings kept failing ) and needed to be replaced again. Average life span seemed to be about 40,000 miles. The NVG4500 has about 90,000 on it presently with no problems so far.

It may be pricey, but it was worth it to me.
  #8  
Old 03-15-2005, 02:42 PM
Bob Q
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I don't think the Getrag 5 spd. was ever offered with the 6.2L. According to old sales brochures, from '88-'91, the only manual trans offered with the 6.2L was the SM465. For '92-'93, the NV4500 was the manual trans that was offered.
  #9  
Old 03-17-2005, 04:50 AM
catmandoo
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my 92 1/2 came with a 6.2 and an nv4500,just turned 444,444 miles yesterday.
  #10  
Old 03-18-2005, 10:28 PM
SimonUK SimonUK is offline
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Anybody any thoughts on this.

The V12 jaguar has the same GM bellhousing bolt patern and runs the TH400 tranny. There are also 4,5 and 6 speed manuals available.

They are plentifull in breakers over here.

Anyone gone down this route for a manual box for a 6.2.

Simon.
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84 M1009 CUCV 6.2 'J' spec everyday runaround

83 M1008 CUCV everyday runaround/workhorse.

83 M1008 CUCV 6.2 'J' spec budget project off roader.
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