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T5 over drive gears #1191261 11/17/2016 4:14 PM
Joined: Oct 2015 Posts: 406 Whitby Ontario Canada P panel fan 'Bolter
panel fan 'Bolter P Joined: Oct 2015 Posts: 406 Whitby Ontario Canada	Hi all, does any one know if over drive gears can be switched from another t 5 with different ratios. I have a 1352 -072 with a 063 o/d which worked fine until I changed the rear end ratio. I also have a 1352- 145 that I used the tail housing off with an 0.72 o/d. I would like to replace the 0.63 with the 0.72. I suspect both gears will have to changed if this works at all. The seasons is fast approaching here in Canada when there will be time to mess with such projects good planning is no substitute for dumb luck

Re: T5 over drive gears panel fan #1191279 11/17/2016 6:14 PM
Joined: Jun 2011 Posts: 5,096 Longmont, CO E EdPruss Crusing in the Passing Lane
EdPruss Crusing in the Passing Lane E Joined: Jun 2011 Posts: 5,096 Longmont, CO	If you have access to both, count teeth and compare dimensions, the input and cluster driven gear may be the only difference. There is a gentleman on here who might chime in. Ed '37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires. '47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle. '54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed. '55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.

Re: T5 over drive gears panel fan #1191441 11/18/2016 5:51 PM
Joined: Sep 2011 Posts: 2,951 South Carolina L Lugnutz 'Bolter
Lugnutz 'Bolter L Joined: Sep 2011 Posts: 2,951 South Carolina	Originally Posted by panel fan Hi all, does any one know if over drive gears can be switched from another t 5 with different ratios. I have a 1352 -072 with a 063 o/d which worked fine until I changed the rear end ratio. I also have a 1352- 145 that I used the tail housing off with an 0.72 o/d. I would like to replace the 0.63 with the 0.72. I suspect both gears will have to changed if this works at all. The seasons is fast approaching here in Canada when there will be time to mess with such projects Using the charts, I see you want to put an S10 5th gear on a Camaro T5. The end result will not give you the 0.72 overdrive gear you want. Read more below. What you need is the 0.72 overdrive gear from a non-world class Camaro T5. Not easy to find, but they are out there (somewhere). In general, 5th gears can be changed if swapping a non-world class with another non-world class T5. Same is true if world class exchanged with world class. There is one VERY IMPORTANT factor to understand before undertaking any 5th gear swap. The S10 input shaft has 21 teeth matched to the 37 teeth on the countershaft. The Camaro T5 input shaft has 24 teeth. So if you put a 0.72 S10 5th gear into a Camaro T5 you won't end up with 0.72. So it's fine to swap 5th gears from one S10 T5 to another or from one Camaro T5 to another, as long as you stay WC or NWC for both. Also, FORD T5 5th gears do not have the correct splines to work on a Chevy T5 main shaft. Last edited by Lugnutz; 11/18/2016 6:05 PM. 1965 Chevy C10 Shortbed 1/2-Ton Stepside Truck College In the Stovebolt Gallery In the Project Journals Forum The Build BLOG on Weebly T5 Transmission Build page

Re: T5 over drive gears panel fan #1191474 11/18/2016 10:50 PM
Joined: Oct 2015 Posts: 406 Whitby Ontario Canada P panel fan 'Bolter
panel fan 'Bolter P Joined: Oct 2015 Posts: 406 Whitby Ontario Canada	Thanks for the input, I was afraid having all this stuff hanging around was to convenient . I guess I'll search out a complete parts trans. good planning is no substitute for dumb luck

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