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Manual Transmission that Fits Several Engines? by Inferno
Started on: 09-10-2013 04:25 PM
Replies: 3 (244 views)
Last post by: CowsPatoot on 09-10-2013 08:35 PM
Inferno
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Report this Post09-10-2013 04:25 PM Click Here to See the Profile for InfernoClick Here to Email InfernoSend a Private Message to InfernoEdit/Delete MessageReply w/QuoteDirect Link to This Post
Guys I know you will know the answer to this right away.

What Manual Transmission can be fitted to the 3500 V6 as well as an LS Series V8?

THanks
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Gall757
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Report this Post09-10-2013 05:05 PM Click Here to See the Profile for Gall757Send a Private Message to Gall757Edit/Delete MessageReply w/QuoteDirect Link to This Post
Is the answer 'none'?
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fieroguru
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Report this Post09-10-2013 06:04 PM Click Here to See the Profile for fieroguruSend a Private Message to fieroguruEdit/Delete MessageReply w/QuoteDirect Link to This Post
The 3500 uses the GM Metric bell housing Pattern. All the RWD engines in the LS family use the old SBC/BBC bell housing pattern. Only the FWD LS4 has the same metric bell housing pattern as the 3500.

Manual transmissions with the metric bell housing include: 4 speed muncie, 5 speed isuzu, 5 speed 282 getrag, 92-94 HTOB 282 getrag, 284 5 speed getrag, F23 5 speed, F40 6 speed... and a few others.

Without an adapter plate any one of these transmission could bolt up to both the 3500 or the LS4. The challenge is the LS4 does not have a starter provision and none of the transmissions listed have an OEM provision for mounting the starter on the transmission side. It is possible to fabricate a bolt on starter mount for the LS4. Once past the starter, then you need a custom flywheel.

With an adapter plate any one of these transmission could bolt up to both the 3500 (no adapter plate) or any of the RWD LS engines (with adapter plate, custom starter mount, flywheel, etc). V8 Archie sells the kit to use a metric bell housing transmission with the RWD LS engines.

For example F40 6 speed transmission has been installed behind a 2.8, 3.4TDC (nearing completion), 3800, 3900, 4.9L, N*, LS4, and many RWD LS engines using Archie's kit.

[This message has been edited by fieroguru (edited 09-11-2013).]

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CowsPatoot
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Report this Post09-10-2013 08:35 PM Click Here to See the Profile for CowsPatootClick Here to visit CowsPatoot's HomePageSend a Private Message to CowsPatootEdit/Delete MessageReply w/QuoteDirect Link to This Post
Note that those trannies will technically bolt to the LS4, but things aren't that simple. The starter is on the tranny side for the LS4, which means any manual tranny will require severe modification to work with that engine.

It has been done...but not for the faint of heart.

Edit to add - never mind, FieroGuru already explained that...and he knows far more about it than I do.

[This message has been edited by CowsPatoot (edited 09-10-2013).]

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