Hey folks, I am currently test fitting a keisler TKO in my 66 coupe. I intend to fabricate a crossmember. I have the stock c4 member I originally had hoped to modify but the new trans seems a fair bit different. I am wondering how should I go about obtaining the proper driveline angle on the new member? Level the car, measure the rear end and Jack the trans tail shaft up until it matches? It seems like it would be pretty crucial but it also seems like others are just building whatever from what I have seen on other forums so maybe I am overthinking it. I guess it should be noted I have an 8.8 I still need to test fit and weld perches on as well if it ends up a bit out. Any help would be appreciated!
DIY TKO Crossmember
- Thread starter AlmostCoffee
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- crossmember tko600
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I would attach the engine to trans, mount it in the car and set the engine to the appropriate angle/slope that you want. See where the trans position is then. If all is good, check your angle and set your rear end perches. Build your trans mount/cross member and enjoy.
Make a stencil out of cardboard, get a 16 inch long 4 inch wide plate (this is 1/4”, get your hole locations and basic shape, transfer, reinforce etc. pretty straightforward and would be lots of fun if you have a hoist or pit…
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When you describe 4.2 degree down angle for the trans, which direction are you looking from? Tail shaft looking forward or crankshaft looking rearward? Same question for the 8.8?
I measured with my phone off a machined surface of the tail shaft. The engine/ trans tilt rearward, the dif tilts slightly upward. Normally they sit in the ~3-3.5 degree range but I was contacting the tunnel at 3.5 degrees so I am running around 4 degrees.
I measured mine with my phone too. What was the angle of the driveshaft? High in the front or high in the rear?
Here is the calculator I used to figure out my Driveline Operating Angle:
spicerparts.com
Here is the calculator I used to figure out my Driveline Operating Angle:
Spicer Driveline Operating Angle Calculator
Measure the angles of each component in your drivetrain, then use the Spicer Driveline Operating Angle Calculator to find the operating angle of each u-joint in your drivetrain.
spicerparts.com
I don’t have a driveshaft yet but it will be high in the front. I used Tremecs appI measured mine with my phone too. What was the angle of the driveshaft? High in the front or high in the rear?
Here is the calculator I used to figure out my Driveline Operating Angle:
Spicer Driveline Operating Angle Calculator
Measure the angles of each component in your drivetrain, then use the Spicer Driveline Operating Angle Calculator to find the operating angle of each u-joint in your drivetrain.
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