Here's a what if ...

Here's a what if ...

Joined: January 3rd, 2003, 11:06 pm

March 22nd, 2004, 6:00 am #1

I wonder if a 5 speed from a newer truck will live behind a cleveland. They are made by ZF, they are very big, so I assume they can handle some torque, they have a hydro clutch setup, You would need to fab a master cylinder setup but thats doable. Anybody else think about this?

sixty4fairlane
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Joined: January 7th, 2004, 11:18 am

March 22nd, 2004, 6:16 am #2

ZF is a tough trans but I don't believe there is a trans case with a small block belhousing for a cleveland. There is one to fit a 351M or 400M which is the same as a 460. It is also a slow shifting trans, not good for racing.
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Joined: March 20th, 2003, 1:54 am

March 22nd, 2004, 6:51 am #3

It will only fit in a truck. It is really huge. I had one in my old 460 powered truck. Get a tremec TKO or TKOII, plenty strong and only about 100 lbs. Shifts a bunch better. I wouldn't run the ZF anywhere but in a truck and behind a big block. Even a top loader would be a better choice I think.

71 M code Mach 1, Tremec TKO, Wilwood SL6's, road racer.
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Joined: February 3rd, 2003, 5:22 pm

March 22nd, 2004, 4:08 pm #4

Plenty tough for a 'C'. Check as well with the Network 54 FE big-block and 385 series crowd since many run them in race trim and/or on the street. Doug Nash (of drag racing fame of yore) developed this trans design long ago an alternative to the Toploader by adding a 5th gear but designing it around a tough alum. case. Richmond Gear bought out Nash and has further inproved the line by adding a road-race unit and further beefing up the drag race unit as well. 5th is 1-1 ratio and allows greater top-gear hp & torque transmission than underdriven 5th gears found elsewhere....a prime benefit! Rear gears usually recommended at 3.00-3.31 due to ultra-low 1st but it's still a close ratio box that won't drop-off the rpms from 1st-5th. Mounts in any Ford or aftermarket 'bell with stock Toploader pattern. And yes, I've read that Richmond years ago very conservatively rated the 5-speed at 450 ft./lbs. torque load but... many users run well over 600 ft/lbs. in many applications w/o any failures, especially in drag racing.

Unit uses either a Hurst or Long specific traditional side-mount shifter that fits just about any early Ford body with minimal trimming. Have had one for years (street 5 spd.) and love it! Just ask any users.

"RICHMOND 6 SPEED OVERVIEW (Jag's auto commentary)


This 6 speed is the best 6 speed design out there. Since 5th gear is direct and not an overdrive gear you get nice close ratio shifts ( rpm drops less than 25 percent) all the way up 5th. The original concept of the Richmond 6 speed was that it was based on the Richmond 5 Speed ( the old Doug Nash 4+1). That concept was that in the 1960's to early 1970's we didn't mind having 4.11 or 4.56 rear end gears in American muscle cars. We could have a close ratio 4 speed because we could have a 4 speed with a DEAD 1st gear ratio like 2.20 coupled to a rear axle with a 4.88 gear. Since the gas crunch came along we saw conventional autos having the rear axle ratios drop to 3.08. This would not work well with a 2.20 1st gear 4 speed. So they made 4 speeds with 2.88 or 3.42 first gears to make up the difference. The problem was that the 4 speeds being produced became "ultra wide ratio" gearboxes. This wide ratio thing didn't work for the street people since they didn't want 4.11 rear end gears and a close ratio box or 3.08 rear end gears and a wide ratio box. The Doug Nash 4+1 fixed that problem. It gave you the ability to have 3.08 gears in the rear and have a close ratio "5 speed". The 5th gear was direct and first gear ratio was 3.27 to 1. The newer 6 speed adds an overdrive gear to the mix allowing the user to boost axle ratios to 3.90 to 4.11."


Just one caveat: neither the 5 or 6-speed is cheap!

http://www.richmondgear.com/01fivespeed.html

http://www.kitcarmag.com/techarticles/0311_trans
Last edited by machoneman on March 22nd, 2004, 4:59 pm, edited 1 time in total.
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Joined: January 3rd, 2003, 11:06 pm

March 22nd, 2004, 5:04 pm #5

To be brutally honest I don't know if I will ever have 3000 dollars all at one time to buy a richmond 5/6 tranny. 302s can bust a T-5, so I know a cleve will shatter one of those. And the fairlane is an auto car so the hydro clutch got me thinking MAYBE. I would love to throw some shifts with my cleve but I ain't going to find all the mess to put in a clutch pedal and all the linkage. Toploaders are rare as virgin pu... and to get one ready to go is the same price as buying a TKO. Even the T/L with the OD gear are hard to find. I wouldn't have minded to cut out the trans tunnel for the ZF and I know I seen those things behind 351w and 302 in 1/2 ton trucks. But like I said since it's a slow shifter I reckon to move on from that idea. Any other junkyard finds anybody else has thought up ??

sixty4fairlane
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