doing manual swap - The 1947 - Present Chevrolet & GMC Truck Message Board Network

hotrod_991 · 09-23-2011, 03:47 PM

Ok i plan on swaping in a manual 4 speed instead of a 700R4. I think I have most everything I need for it now except the pedal assembly. I have a few questions for the knowlegable here...

1...Do I need the assemebly from a manual truck or can I use the one from like an older camaro?

2...I dyno out at right around 280hp/300TQ at he wheel. Will my 4 speed saginaw take that? Running 373 gears. It is built mostly for street use alittle track time here and there.

Thank you

ECU PIRATE · 09-23-2011, 04:50 PM

Doing the same thing right now but, I am dropping a Muncie in my toy. You will need the pedal assembly out of a 73'-84' truck if you are going with mechanical linkage. I am no expert but, the Saginaw should handle that with no problem. Some of the old circle track guys that I know say the Saginaw is a lot tougher than the Muncie. Your transmission crossmember is good as well since the length of the Sag w/ the bell housing is exactly the same as a TH350.

Make sure you get one of those # 460486 truck bell housings if you have not already done so. I had the complete bell housing / transmission from my 68' Camaro parts car that I was going to use until I found out that I would have to adjust the linkage to accomadate.

The HP on my motor may be slightly higher but, I need to swap out my 2.73 gears for a set of 3.42 gears. Let me know how it goes. I am dropping the column in my truck this weekend to swap in the complete pedal assembly.

May be some other stuff that I am forgetting. If you need some answers, give me a holler and I will run down the list that I have compiled. I think you will be happy when it's all said and done. personally, I can't wait to bang thru the gears on my Square!!!!!!!

hotrod_991 · 09-23-2011, 05:01 PM

This is going to be a several month parts build up as I still have while before i can do the swap...still rockin it here in afganistan.

I will lookup that bellhousing...were would I go to order that? Mine is comeing from a 60's camaro also. Tranny, bellhousing, camaro shifter with linkage. Will the shifter work in the truck or do I need to get a diffrent one? i have buckets so not worried about clearing the bench.

Also have you figured out exactly were you will have to cut your hump for the shifter yet? Thanks

09-23-2011, 03:47 PM	#1
hotrod_991 Registered User Join Date: Jul 2009 Location: Thibodaux, LA Posts: 479	doing manual swap Ok i plan on swaping in a manual 4 speed instead of a 700R4. I think I have most everything I need for it now except the pedal assembly. I have a few questions for the knowlegable here... 1...Do I need the assemebly from a manual truck or can I use the one from like an older camaro? 2...I dyno out at right around 280hp/300TQ at he wheel. Will my 4 speed saginaw take that? Running 373 gears. It is built mostly for street use alittle track time here and there. Thank you __________________ "Buckle up I wanna try somethin!!" "of course it will hold!, I welded it!" 1977 c10 under knife for full rebuild, 5.3l 4l60e drive rain swap, replacement frame and green repaint

09-23-2011, 04:50 PM	#2
ECU PIRATE Registered User Join Date: Apr 2009 Location: Centreville, Virginia Posts: 846	Re: doing manual swap Doing the same thing right now but, I am dropping a Muncie in my toy. You will need the pedal assembly out of a 73'-84' truck if you are going with mechanical linkage. I am no expert but, the Saginaw should handle that with no problem. Some of the old circle track guys that I know say the Saginaw is a lot tougher than the Muncie. Your transmission crossmember is good as well since the length of the Sag w/ the bell housing is exactly the same as a TH350. Make sure you get one of those # 460486 truck bell housings if you have not already done so. I had the complete bell housing / transmission from my 68' Camaro parts car that I was going to use until I found out that I would have to adjust the linkage to accomadate. The HP on my motor may be slightly higher but, I need to swap out my 2.73 gears for a set of 3.42 gears. Let me know how it goes. I am dropping the column in my truck this weekend to swap in the complete pedal assembly. May be some other stuff that I am forgetting. If you need some answers, give me a holler and I will run down the list that I have compiled. I think you will be happy when it's all said and done. personally, I can't wait to bang thru the gears on my Square!!!!!!! __________________ The Fleet........ 68' Camaro - 1st car (restored & still have it) 09' VW Tiguan (Wife's Daily Driver) 14' VW Passat SE TSI (my personal) 14' Ford Edge Sport (Daily Work Vehicle) 73' SWB Stepside - 77K org. miles 74' LWB 454/TH400 - drive train transplant for my (Sold) 98' SWB C1500 W/T - shop truck (Sold) 90' GMC Sierra SLE short step - aka " Jezabelle " (Sold)

09-23-2011, 05:01 PM	#3
hotrod_991 Registered User Join Date: Jul 2009 Location: Thibodaux, LA Posts: 479	Re: doing manual swap This is going to be a several month parts build up as I still have while before i can do the swap...still rockin it here in afganistan. I will lookup that bellhousing...were would I go to order that? Mine is comeing from a 60's camaro also. Tranny, bellhousing, camaro shifter with linkage. Will the shifter work in the truck or do I need to get a diffrent one? i have buckets so not worried about clearing the bench. Also have you figured out exactly were you will have to cut your hump for the shifter yet? Thanks __________________ "Buckle up I wanna try somethin!!" "of course it will hold!, I welded it!" 1977 c10 under knife for full rebuild, 5.3l 4l60e drive rain swap, replacement frame and green repaint



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