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Posted by Mike Hernke [166.147.104.22] on Tuesday, August 21, 2012 at 14:06:38 :
In Reply to: Trans choices posted by Bob Jr [72.161.232.239] on Tuesday, August 21, 2012 at 10:17:53 :
I have the 435 and I believe it has very high miles and has put up with plenty of abuse from me. Cast iron case and it uses gear oil however I find the gear spacing is not well suited to the 4bt power band. I think the Ford t19 with the 4:1 first would be a better street granny. The zf is aluminum uses atf and I believe has similar gear spacing to the 435 but has od. I also think the smallblock zf is a s5-420 and is rated for.420 lbs ft torque which is fine stock but may not handle mods. Not sure of 435 rating. Assuming a budget I would use the zf in a pw and get the 3000 rpm governor spring and look for the smaller waste gated Turbo. Mine has a large non gated Turbo and struggles to make boost below 2000 rpm.