What is the manual trans option for the GM 5.3 or even 4.8 engines?
Anybody got any GR leads for a pair?
What is the manual trans option for the GM 5.3 or even 4.8 engines?
Anybody got any GR leads for a pair?
Any of the gen 1/2 small block chevy manual trans options work.
Are they all T56?
Anything that will fit an LS1. There are ways to fit T5s as well as anything that fit an older SBC.
No.
Muncie M20/21/22
Muncie SM 465
Tremec T-5
New Venture Gear NV1500
New Venture Gear 3500/4500
When I was looking into this a year or two ago, I thought the best setup on a budget would be a late 70's early 80's Super T-10. The T56's are really really expensive IMO, and the T5's don't seem to last. The T-10 is pretty cheap and very strong - looked like a good option if you can stand a 4-speed.
IIRC, there are some newer truck 5 speeds that are ok as well.
JohnyHachi6 wrote: IIRC, there are some newer truck 5 speeds that are ok as well.
(These are the NV units that Appleseed mentioned)
Don't forget:
There also exist adapter plates to bolt a Ford toploader to a Muncie bellhousing, at which point it bolts up like a muncie with ford clutch splines and pilot diameter.
For cruising applications, the New Process (old mopar design) A833 OD was used in a lot of 80s 1/2 ton GM pickup trucks, all came with a special purpose built Hurst shifter IIRC.
5.3 and Super T10, sounds pretty good to me.
I have a SFI bellhousing and sleeve type throw out/slave which will work for the Super T10.
Its not likely to do much highway work anyway
I have a good clutch on the 406, will it work on the 5.3?
the one thing to keep in mind when looking for junkyard/CL parts is that a bellhousing for a small diameter (12.75") flywheel won't work with an LS engine because it has the larger 14"flywheel..
The flywheel and pressure plate are all different. There's some stock LSx flywheel/pressure plate that works and puts the release fingers in the correct place IIRC.
In reply to Appleseed:
the SM465 bolts up to LS blocks?
Maybe I should have done a 5.3L swap in the burb...
Probably. I'm sure some guy, somewhere, made an adapter.
fidelity101 wrote: In reply to Appleseed: the SM465 bolts up to LS blocks? Maybe I should have done a 5.3L swap in the burb...
http://www.novak-adapt.com/knowledge/sm465.htm
The LS bolt pattern is basically the same. There is an extra boss in the top center on the LS block that won't be used and one other bolt hole that exists on the bellhousing that won't be used, but 5/6 is just fine.
There are adapters to put almost any trans behind the LS, but GM type bellhousings will bolt right up. LS type clutches/housings are a different depth so you may need a specific flywheel/clutch, but its basically a bolt-in.
A better question... what's it going in? Ratios vary widely and it depends on your weight, use, etc. T56 is a fantastic tranny, but with the steep 2.66 first and double OD 0.50, it really needs some pretty high (numerical) final drive gears to match. For instance, I have a T56 to put in my Impala SS. Original setup was 4L60E and 3.08 gears. To keep the same basic final drive spread I switched to 4.10s.
T10 is like the first four gears of a T56 minus ODs. Big difference in spread.
Strike_Zero wrote: Don't forget: - AX-15 - R-154 - W-58 - MA5/AR5 - Saginaw - T-10/Super T-10 - TopLoader
Which version of the AX-15?
The one used behind the 88-99 I6 Jeeps and 6 cylinder Dakotas of the same vintage. The NV3550 was the successor transmission.
They were built by Aisin. The R154 and AR5/MA5 transmissions are related to AX-15. The Novak adapter and 621 (also 486, 697, 444 (any GM bellhousing using in a car or truck with a 168 tooth flywheel)) bellhousing will put it behind a Gen III and up V8.
Here's a good site for Bellhousing info
http://www.4speedconversions.com/chevy-bellhousings.html
I have a 486 bellhousing found on CL for $50 shipped.
It is for this, remember my old Challenger, well now its getting resurrected and for rallycross abuse
Has a boxed frame, Ford 8.8 disc brake rear, removing the 406 for another chllenge build.
So decent power, ie 5.3 and a manual box to fit to drive it slideways on rough stuff
The same model T-10, Muncie, NV etc can have different ratio's too. Check carefully when buying!
curtis73 wrote: A better question... what's it going in? Ratios vary widely and it depends on your weight, use, etc. T56 is a fantastic tranny, but with the steep 2.66 first and double OD 0.50, it really needs some pretty high (numerical) final drive gears to match. For instance, I have a T56 to put in my Impala SS. Original setup was 4L60E and 3.08 gears. To keep the same basic final drive spread I switched to 4.10s. T10 is like the first four gears of a T56 minus ODs. Big difference in spread.
a while back i was researching what it would take to swap a 5.3 or 6.0 into my GMC 3/4 ton 4X4 with the cast iron 4 speed in it, and what i came up with was a flywheel for a 99-01 6.0 and a pilot bearing for a 98-02 Trans Am or Z28, with my existing clutch being reused... other than the motor mount adapter plates (6 holes drilled in a piece of 1/8" steel- whoopty doo), that was all it would take to physically get one of those motors into the truck.. these same parts would work for any other trans that bolts up to a small block, provided that you started out with a bellhousing that clears the 14" flywheel and 11" clutch..
kind of off topic, but oddly enough an 8100 is an even easier swap- take the flywheel from the 307 that's in my truck and bolt that up to the 8100 and put it all back together and drop it back in using the existing engine mounts, with only metric bolts being used to bolt the bellhousing to the engine instead of the 3/8" bolts that are in it now...
RossD wrote:fidelity101 wrote: In reply to Appleseed: the SM465 bolts up to LS blocks? Maybe I should have done a 5.3L swap in the burb...http://www.novak-adapt.com/knowledge/sm465.htm
hrmm, so I wouldn't even need an LS gen bell housing? std SBC bell housing would be fine?
curtis73 wrote: The LS bolt pattern is basically the same. There is an extra boss in the top center on the LS block that won't be used and one other bolt hole that exists on the bellhousing that won't be used, but 5/6 is just fine. There are adapters to put almost any trans behind the LS, but GM type bellhousings will bolt right up. LS type clutches/housings are a different depth so you may need a specific flywheel/clutch, but its basically a bolt-in.
The flywheel would be the issue, 85 and older with 2 piece rear main seal w/ outside bolt header valve cover use a different flywheel than 86+ newer SBC because of the 1 piece rear main/center bolt valve covers.
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