George Coleman
Gold Level Sponsor
Jim what is the finial ratio of the OD trans? Scotts post said 80mph at 3000rpm has got me stumped?
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Enjoy.
Scott, Are you using a OD with the 3.70 gear?
Yes - I replaced the stock 3.89 with a new 3.70 set from Rootes Post Vintage Spares. Coupled with my OD it makes for a sweet cruise at high speeds on the highway. I'm using 165/80 R13 radials.
Scott, did you have your speedo recalibrated for the rear end change? I'm swapping my 4:22 with OD to a 3.89 and to have MoMa rebuild and recalibrate my speedo cost $230. Granted their work is superb, customer service is great and turn around time is fast, but their price has going up significantly the past few years!
Just looking at the gearing and with the 3.70 with the OD your finial drive ratio should be 2.97 at the rear, at 80 mph you should be turning 3756rpm thats with 13" tires, just a thought. My final drive with the 3.70 gear and the Toyota 5 speed is 3.18, so at 80 mph my tach reads 4020 rpm.
I am installing the 3.70 and an O.D. transmission next week. I think I will have to send the drive shaft out to be shortened. (right?)While you are waiting on Dellow and I know they are in no hurry, You can install a 3.70 gear with your stock trans. this will give you a good highway speed. I installed the 3.70 gear and it worked well then I added the 5 speed it made it better.