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Old 04-27-2018, 01:13 AM   #1
heywier427
 
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Default VG 300zx Z32 Trans into Hardbody Swap

So after breaking two SR20 gearboxes, I have upgraded to a VG 5 spd.

I have an Sr20det in a 96 D21/Hardbody. +/-350 hp. Right on the limit of the stock internal stuffs.

Used the Xcessive Manufacturing adapter plate kit, and it went in without a hiccup. Very straight forward. Good directions/instructions. Has pictures !!

https://xcessivemanufacturing.com/ni...-sr-vg-ta.html

54" Driveshaft is needed (from center to center of ujoints). As well as the z32 yoke. Spicer Product # 2-3-13311X < This is with a Dana 44 rear end, but it should not change the shaft lenght. Went with a 600hp 3" aluminum one. Twisted the 2.5" steel one

The following pictures are of the shifter relocation/adapter I made to move the shifter location to the stock location. The Z trans shifter is wayyy back in stock form as compared to the D21. You can buy a short relocation kit from a few places, which moves it back about 5" from the stock D21 shifter location. Its not too bad, but its not good, and requires cutting.

On with it: Edit. All funkyness, uglyness, and cutting was done by the previous owner. He was high I guess... I am waiting for a carpet kit to neaten it all up.

















Last edited by heywier427; 04-27-2018 at 01:18 AM.
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Old 04-27-2018, 01:13 AM   #2
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Made a little kicker, as I wanted it closer to my little fidget arms. Easier grabbing position. Cause you know...Racecar



Dont mind the drippy paint. I paint heavy to fill in the weld nooks n cranny's!





Used a 92-95 Honda Civic Eg center console.






Still a work in progress. But a fun little sleeper, that makes Porsche drivers cry Go Nismo Go!!!
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Old 04-27-2018, 02:19 AM   #3
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I would like to thank you for your detailed posts and photos. Well done indeed. Looks like a blast. When you get some time I am certain that some of the folks here would appreciate to have a few pics of your engine bay as well.
Thanks again.
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Old 04-27-2018, 02:27 AM   #4
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Nice!
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Old 04-27-2018, 05:01 AM   #5
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X 2 on that nice. Love the combo in the truck. What I've always wanted to do.....SR swap. I was leaning toward the GMTH400 but a tt 5 speed sounds much more fun! Yeah, you need to show us a lil story with pics about your truck. Well, atleast I'd like to learn/here more about your adventures building/driving it. Been in the GM LS world for awhile but my heart still keeps bea ting nismo d21...
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Old 04-27-2018, 09:59 PM   #6
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Wait, so am I a complete dick? The 6 cyl. D21 trans is the same internally as the VG Z32?!

It has a larger output diameter and all?

Please confirm my dumb.

Thanks.
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Old 04-27-2018, 11:04 PM   #7
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Quote:
Originally Posted by heywier427 View Post
Wait, so am I a complete dick? The 6 cyl. D21 trans is the same internally as the VG Z32?!

It has a larger output diameter and all?

Please confirm my dumb.

Thanks.
I have had this same debate. I understand they are very similar except the gear ratios might be a bit different. I currently have two V6 manual transmissions but debate about just going with a 300zx anyway. I searched car-part and found only one truck transmission less than $800 but like 5 or 6 300zx transmissions for less, this was years ago so might have changed. With the 300zx I have the option for a short shift kit and more support if something did go wrong.

I have not blown my sr20 transmission yet but think once I put the new motor in it and a clutch that can handle the added power the transmission will be in toast. What clutch did you use? I see you like the adaptor plate, what starter does it require and is there any gotchas I might need to be aware of?


Edit.....
I had this in a thread and thought it might help, I did not look at any of these recently.

Here is a link to the Nissan transmissions if your wondering about it (link from another site:http://club-s12.org/retro4/index.php?topic=12333.0).

The stuff below seems to be outdated and links are fubar....
(putting this here because I have old timers and needed a reference point where to find a few threads about transmissions:
http://www.infamousnissan.com/forum/...ission&page=14
http://zilvia.net/f/tech-talk/356443...-location.html
http://www.az-zbum.com/information.transmission.shtml)
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Last edited by scoobysmak; 04-27-2018 at 11:21 PM.
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Old 04-27-2018, 11:38 PM   #8
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Adapter plate was the xcessive manufacturing, and it was perfect in all ways.

I like the fact that there was no bell housing modification, as I am extremely rough on things and vehicles, so if I could keep this trans 100% unmodified, better for my/its next adventure.
Edit: There was a slight modification. As stated in the instructions, 3-4mm in depth and 10mm in length is needed to be ground out of the bellhousing, where the starter teeth pop out. It was super simple, and easy to understand the why.

The clutch was an Sr clutch, which it is meant to keep/work with. Clutch and flywheel are both Sr. Flywheel is lightened, and clutch is a Spec 6 puck. Stage 3? I dunno, came with the engine, was brand new. Send it!

One thing people always bring up about this adapter kit, as compared to others, is the need to use the flywheel spacer, to make up for the adapter plate thickness.

In my eyes, it is a non issue. I have run flywheel spacers on 800-1500 hp v8's and rotarys. They are fine. The hardware is the only possible weak point. But Ive never seen 6 to 8 12-14 mm flywheel bolts shear. Ever. Even through out searching the google. Flywheel spacers are most used on LS swaps and power glides. High Hp, high torque. Nothing the Sr can ever dish out. Its fine.

As far as trans availability, it is reverse up here. more than 10 pop up on car-part.com. 250-600.00 range. Its the Z trannys that people covet. I bought this one 5 yrs ago for a ttvh setup that never got completed, for 150.00 Now they are up to 650+ on craigslist.

The first Sr trans was trash, and I just helped kill it. The second, was due to twisting the driveshaft. That broke the tail housing on it. I went VG, as the availability, price, and fragility of the Sr was not appealing. Especially at the rate I break stuff

I will post engine bay pics this weekend. Its not super pretty, but Im cleaning it up bit by bit.

I bought this truck to replace my back yard beater/junk/leaf hauler. A 720. This will just be a bit faster Making look like it was built by someone with common sense is the goal. It will never be pretty. Ugly, sleepy, and passing everything!

Last edited by heywier427; 04-27-2018 at 11:45 PM.
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Old 04-28-2018, 12:14 AM   #9
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Quote:
Originally Posted by lomofo11 View Post
X 2 on that nice. Love the combo in the truck. What I've always wanted to do.....SR swap. I was leaning toward the GMTH400 but a tt 5 speed sounds much more fun! Yeah, you need to show us a lil story with pics about your truck. Well, atleast I'd like to learn/here more about your adventures building/driving it. Been in the GM LS world for awhile but my heart still keeps bea ting nismo d21...
Look through the window of my last picture
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Old 04-28-2018, 08:17 PM   #10
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I see that mani peeping by the window....
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