V2 to V1 Rear Subframe Swap
#41
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For many, I think you may be right. I can't find anything for gears and/or diffs for that rear so I think I would have still gone 8.8 for the setup I put together(4.56s and Truetrac). I still may end up with a different ratio(4.30s?) depending on how I like it, but picking 8.8 ratios and lockers is like candy--every shape and size imaginable and even from multiple vendors.
I see 3.23 and 3.73(auto and stick, respectively) available which will probably work for a lot of people. Does anything else interchange from perhaps ZL1 or other Camaros?
I see 3.23 and 3.73(auto and stick, respectively) available which will probably work for a lot of people. Does anything else interchange from perhaps ZL1 or other Camaros?
#42
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Yeah the main problem is finding an M6 diff. A lot of the auto diffs are 3.42 and without a lot of power, that is going to kill the grunt of a V1.
I was finding gen2 CTS rear cradles with all suspension included on car-part.com for $350ish. Tack on $150-200 freight shipping for such a large item, then ~$850 for V2 diff/axles on eBay, $1000 for custom DSS shaft, and however you want to figure out the brakes. Either drill/machine stockers and run stock parking brake or get the V2 parking assembly and run V2 rotors.
As long as you can find an M6 diff for under 1k along with a full cradle for under 500 shipped, definitely way cheaper than the basic CS 8.8 swap.
I was finding gen2 CTS rear cradles with all suspension included on car-part.com for $350ish. Tack on $150-200 freight shipping for such a large item, then ~$850 for V2 diff/axles on eBay, $1000 for custom DSS shaft, and however you want to figure out the brakes. Either drill/machine stockers and run stock parking brake or get the V2 parking assembly and run V2 rotors.
As long as you can find an M6 diff for under 1k along with a full cradle for under 500 shipped, definitely way cheaper than the basic CS 8.8 swap.
#43
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Absolute load of crap.
What about 54inch he's contributed more than he has what about fuzzy and my STS spindle upgrade these are light years ahead, what about my subframe connectors, my chassis stiffners the fact that my car is more carbon fiber than anyone else out there what about the dry sump system that actually works on my car just like the vette what about the fact that I'm running The widest tires on the v
Yes I've been spendin time playing around with my ECM upgrade for a while but it worked now I'm taking the time in swapping the complete harness so that it will work properly
One great idea doesn't make someone epic it just raises interest
What about 54inch he's contributed more than he has what about fuzzy and my STS spindle upgrade these are light years ahead, what about my subframe connectors, my chassis stiffners the fact that my car is more carbon fiber than anyone else out there what about the dry sump system that actually works on my car just like the vette what about the fact that I'm running The widest tires on the v
Yes I've been spendin time playing around with my ECM upgrade for a while but it worked now I'm taking the time in swapping the complete harness so that it will work properly
One great idea doesn't make someone epic it just raises interest
While I guess I understand what you and others have done, I go to threads like this to appreciate talent...http://www.pro-touring.com/threads/1...Charger-build?
OP, why did you need new cradle bolts?
Last edited by ls1247; 09-18-2016 at 03:47 PM.
#44
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Originally Posted by ls1247
In all seriousness, I've put a 100k relatively trouble free miles on mine since you drove yours around the block...
While I guess I understand what you and others have done, I go to threads like this to appreciate talent...http://www.pro-touring.com/threads/1...Charger-build?
OP, why did you need new cradle bolts?
While I guess I understand what you and others have done, I go to threads like this to appreciate talent...http://www.pro-touring.com/threads/1...Charger-build?
OP, why did you need new cradle bolts?
Have my next project in the works, taking a 1994 2dr Yukon and updating all the drivetrain and interior parts from a 2013 Sierra Pickup. I am using the Aeromotive Phantom 450 as the fuel pump in the original tank, and C5 fuel filter to control the psi. Will retain the returnless fuel system and pump out 500rwhp/500rwftlb
This way i get a nice old look, with all the newest bells and whistles.
Last edited by Naf; 09-19-2016 at 01:10 AM.
#46
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You should always change these bolts if you remove them more than twice. Your life depends on them.
Have my next project in the works, taking a 1994 2dr Yukon and updating all the drivetrain and interior parts from a 2013 Sierra Pickup. I am using the Aeromotive Phantom 450 as the fuel pump in the original tank, and C5 fuel filter to control the psi. Will retain the returnless fuel system and pump out 500rwhp/500rwftlb
This way i get a nice old look, with all the newest bells and whistles.
Have my next project in the works, taking a 1994 2dr Yukon and updating all the drivetrain and interior parts from a 2013 Sierra Pickup. I am using the Aeromotive Phantom 450 as the fuel pump in the original tank, and C5 fuel filter to control the psi. Will retain the returnless fuel system and pump out 500rwhp/500rwftlb
This way i get a nice old look, with all the newest bells and whistles.
The 94 Yukon project is a win as I appreciate taking tired vehicles and re-purposing them using salvage parts.
That's why I like this cradle swap. In the V2, all reports are that this cradle/diff was a factory engineered solution to the wheel hop and differential problems the V1 suffered with. The fact that it seems to be a bolt in solution that can be done using salvage parts is epic for a guy like me who likes driving his car but doesn't want to dump a ton of money in it.
The challenge here as someone already pointed out is the gearing. I'd do this over an 8.8 swap any day of the week if the ratios were close. Wonder if the later gen SRX diffs interchange and what kind of ratios they have?
#52
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I'm thinking that won't work out. Only the 1st gen SRX and 1st gen CTS shared a platform. 2nd gen SRX is a FWD/AWD platform (Epsilon II), not related to the Sigma II platform used by the 2nd gen CTS.
#55
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Gear ratio is a preference thing, fine-tuning, almost preference. My loaded 98 Z28 weighed within 50-75 lbs of this car and the 3.42 gears were great. Usable first gear and better highway MPGs, that 200rpms can make a difference there. It's more than 200 difference if you factor in the different trans gears. If I lived in a hilly area, I'd lean towards the 3.73s. Basically, I think either will do just fine regardless. Both LS6 and LS2 have more than enough torque and flexibility for either, no matter what you're doing. In LS1 M6 cars, 3.73s weren't worth it, it was 4.10s or stick to 3.42s. In a stock weight car, I think that's the case here too...especially given the revised tranny gears in our cars. Preference and application optimizing are key, not need.
#56
TECH Regular
Afaik, the ratios go:
3.23 base, V2 Auto
3.42 base
3.73 base, V2 manual
The base diff's are aluminum, the V2s are iron.
On the base much of the case (aside from the mounting points) Looks very similar to the early V1 diffs. Perhaps the ring and pinion could beborrowed from early gen cts/srx.
3.23 base, V2 Auto
3.42 base
3.73 base, V2 manual
The base diff's are aluminum, the V2s are iron.
On the base much of the case (aside from the mounting points) Looks very similar to the early V1 diffs. Perhaps the ring and pinion could beborrowed from early gen cts/srx.
#59
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I saw that. I was responding to Hefftone indicating that the base diff looked compatible with V1. V1 is compatible with 1st gen SRX(right?), so first gen SRX gears in V2 base or otherwise diff..at least worth asking the question. Or did I read that wrong and confuse myself?
#60
TECH Regular
I saw that. I was responding to Hefftone indicating that the base diff looked compatible with V1. V1 is compatible with 1st gen SRX(right?), so first gen SRX gears in V2 base or otherwise diff..at least worth asking the question. Or did I read that wrong and confuse myself?
I stuck a couple eBay pics of a base gen 2 cts diff....and a base gen1 cts.
Last edited by hefftone; 09-23-2016 at 09:08 PM.