now adding a rear differential cooler on a street car or even a drag race cars just some added expense and adding something else to go wrong in my opinion, but on a road racing car,or circle track car, use of both a rear differential cooler, with a fluid pump and heat exchange radiator and use of a slightly deeper increased capacity ,finned differential cover and use of the higher temp rated synthetic differential lubes,(in most but not all cases) well its a long well documented and its a well known way to insure more durability , the fact is that under high torque loads over extended time frames a rear differential tends to build up considerable more heat and the lubricant tends to degrade. most guys change engine oil on a regular basis, most change transmission fluid and have oil and trans fluid coolers, but its not nearly as common for guys to consistently change differential fluids and heat does break down the lubricants properties over time so adding a differential cooler tends to make the rear differential and its bearings and gears last noticeably longer under high stress like road racing.
in most cases the differential will have a lower drain plug and an upper fill hole that can be used to attach the lines the lower drain should feed the pump the upper fill act as the return fluid point in the circulation, if your differential does not have these access points that allow easy connection of the coolant circulation line connections to the pump and cooling fan, your going to need to drill the case and thread tap or weld in bungs for the line connection points, obviously after carefully checking that a threaded nipple or AN fitting will not protrude thru too cause issues with bearings, supports or moving components inside the differential.
http://www.magnet4less.com/product_info.php?products_id=254
adding a couple high heat range TOLERANT magnets too your differential cover to trap metallic debris won't hurt durability either, the $15 it may cost could save you far more later.
you can J&B epoxy weld
them to the lower outside of the rear cover if your concerned with them potentially getting loose.
check with your differentials manufacturer for the correct lubricant to use and changing it for new fluid every 50K-60K miles won,t hurt either
on many rear differentials adding a deeper and more rigid rear cover with heat dissipation fins or in some cases a differential cooler helps durability
most guys never even consider that a rear differential takes a great deal of abuse and adding cooling capacity helps durability
http://garage.grumpysperformance.co...il-cooler-increases-durability.176/#post-3620
http://www.fluidcapacity.com/
https://fuelandfriction.com/weekend-warrior/understanding-rear-differential-noise/
http://garage.grumpysperformance.co...ans-cooler-on-a-c4-corvette.10514/#post-44478
https://www.summitracing.com/parts/til-40-527
REAR DIFFERENTIAL LUBES
http://www.lastgreatroadtrip.com/wp-content/uploads/2010/11/gear-oil-comparison.pdf
https://www.summitracing.com/parts/der-51008
viewtopic.php?f=71&t=10690&p=46305#p46305
http://garage.grumpysperformance.co...ans-cooler-on-a-c4-corvette.10514/#post-44498
http://www.carid.com/dorman/radiator-fan-assembly.html
http://garage.grumpysperformance.com/index.php?threads/valve-spring-cooling-via-engine-oil.6491/
grumpyvetteAdministratorStaff Member
there have been guys that have the financial resources or connections and or skills to have built an independent rear differential , based on the far stronger DANA 60 vs the factory supplied dana 36 or dana 44 , which are comparable to the G.M. 10 bolt rears, hardly impressive or known for strength or durability, to fit the corvette frame, obviously this takes a good deal of time,effort and money but it also can result in an exceptionally strong rear differential
yes its very unfortunate that there's no commonly, available, and reasonably priced, independent rear differential,available to the performance car enthusiasts,with large disc brakes in the compatible width, and easily retro fitted suspension mounts that I'm aware of, in most local salvage yards , similar to the corvette rear suspension, that has the strength of the dana 60 rear differential.
yes there are custom fabricated solutions, if you have a very healthy bank balance , but nothing based on a dana 60-70- or ford 9" or heavier duty independent G.M. differential
in most cases the differential will have a lower drain plug and an upper fill hole that can be used to attach the lines the lower drain should feed the pump the upper fill act as the return fluid point in the circulation, if your differential does not have these access points that allow easy connection of the coolant circulation line connections to the pump and cooling fan, your going to need to drill the case and thread tap or weld in bungs for the line connection points, obviously after carefully checking that a threaded nipple or AN fitting will not protrude thru too cause issues with bearings, supports or moving components inside the differential.
http://www.magnet4less.com/product_info.php?products_id=254
adding a couple high heat range TOLERANT magnets too your differential cover to trap metallic debris won't hurt durability either, the $15 it may cost could save you far more later.
you can J&B epoxy weld
them to the lower outside of the rear cover if your concerned with them potentially getting loose.
check with your differentials manufacturer for the correct lubricant to use and changing it for new fluid every 50K-60K miles won,t hurt either
on many rear differentials adding a deeper and more rigid rear cover with heat dissipation fins or in some cases a differential cooler helps durability
most guys never even consider that a rear differential takes a great deal of abuse and adding cooling capacity helps durability
http://garage.grumpysperformance.co...il-cooler-increases-durability.176/#post-3620
http://www.fluidcapacity.com/
https://fuelandfriction.com/weekend-warrior/understanding-rear-differential-noise/
http://garage.grumpysperformance.co...ans-cooler-on-a-c4-corvette.10514/#post-44478
https://www.summitracing.com/parts/til-40-527
REAR DIFFERENTIAL LUBES
http://www.lastgreatroadtrip.com/wp-content/uploads/2010/11/gear-oil-comparison.pdf
https://www.summitracing.com/parts/der-51008
viewtopic.php?f=71&t=10690&p=46305#p46305
http://garage.grumpysperformance.co...ans-cooler-on-a-c4-corvette.10514/#post-44498
http://www.carid.com/dorman/radiator-fan-assembly.html
http://garage.grumpysperformance.com/index.php?threads/valve-spring-cooling-via-engine-oil.6491/
grumpyvetteAdministratorStaff Member
there have been guys that have the financial resources or connections and or skills to have built an independent rear differential , based on the far stronger DANA 60 vs the factory supplied dana 36 or dana 44 , which are comparable to the G.M. 10 bolt rears, hardly impressive or known for strength or durability, to fit the corvette frame, obviously this takes a good deal of time,effort and money but it also can result in an exceptionally strong rear differential
yes its very unfortunate that there's no commonly, available, and reasonably priced, independent rear differential,available to the performance car enthusiasts,with large disc brakes in the compatible width, and easily retro fitted suspension mounts that I'm aware of, in most local salvage yards , similar to the corvette rear suspension, that has the strength of the dana 60 rear differential.
yes there are custom fabricated solutions, if you have a very healthy bank balance , but nothing based on a dana 60-70- or ford 9" or heavier duty independent G.M. differential
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