Thread: 4t65e hd to non 4t65e diff

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  1. #1 4t65e hd to non 4t65e diff 
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    okay i put a 4t65e in my gtp because i could not find a hd tranny in time i need to no if i sould put in my hd diffrentional in my none hd tranny my friend is going to rebiuld my 4t65e hd trany for me but wont be able to do it for a while so i just need to no if i should switch the diff thank you guy for any help
    Last edited by travisccox; 07-04-2014 at 10:39 AM.
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  2. #2 Re: 4t65e hd to non 4t65e diff 
    Schooner Tuner ADrugDealer's Avatar
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    IIRC the only major difference is the Differential.
    2008 G8 GT - IOM - LSA Blower, Intercooled, Ported Heads, Cam, Flex Fuel Conversion, Tuned - 550whp - 11.5 @ 124 -
    2000 Regal - Winter Beater
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  3. #3 Re: 4t65e hd to non 4t65e diff 
    Killa Bee Scottydoggs's Avatar
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    and the gears are different in a n/a trans. so if your cars not shifting right now you need the new gears tuned in the pcm.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  4. #4 Re: 4t65e hd to non 4t65e diff 
    Schooner Tuner ADrugDealer's Avatar
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    That too ^^ haha. Are the sun planetary's the same the same or different?
    2008 G8 GT - IOM - LSA Blower, Intercooled, Ported Heads, Cam, Flex Fuel Conversion, Tuned - 550whp - 11.5 @ 124 -
    2000 Regal - Winter Beater
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  5. #5 Re: 4t65e hd to non 4t65e diff 
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    no shift fine and every thing i new the gears would be diffrent buy it was fine with me for now
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  6. #6 Re: 4t65e hd to non 4t65e diff 
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    Good. I wasnt talking about the normal gears, I was talking about in sun planetays, I didn't know if there were a bit stronger in the HD or not
    2008 G8 GT - IOM - LSA Blower, Intercooled, Ported Heads, Cam, Flex Fuel Conversion, Tuned - 550whp - 11.5 @ 124 -
    2000 Regal - Winter Beater
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  7. #7 Re: 4t65e hd to non 4t65e diff 
    Killa Bee Scottydoggs's Avatar
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    Quote Originally Posted by travisccox View Post
    no shift fine and every thing i new the gears would be diffrent buy it was fine with me for now

    if the hd trans is getting rebuilt down the road just leave what you got for now as good.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  8. #8 Re: 4t65e hd to non 4t65e diff 
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    thanks for the help guys
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