Question for Jerico dr4 owners

Rory McNeil · 10-14-2012, 08:30 PM

Thats interesting, both my Jerico DR4`s have a number stamped into the main case, serial number I guess? I agree, it would be best to contact Jerico with the serial #, at least they should be able to tell you what its origional application was, and the gearing it left the factory with. Of course gear ratios could have been switched, and input configurations changed for a different engine, but any info is better than nothing. You certainly don`t want to get stuck with a NASCAR or road race unit. The early narrow gear stuff should be avoided, a buddy had one from the mid 80`s, a couple of years ago, and was unable to get much in the way of parts from Jerico. I don`t know what year Jerico went to the wide bearing version, but my older trans was ordered in early 1990, and is a wide gear unit. Hopefully Jerico keeps parts around for the DR4, now that they are no longer available new.

james schaechter · 10-15-2012, 05:45 AM

The earlier model has narrower 3rd and 4th gears. They look similar to the casual observer, but many parts are hard to find. I would stay away from an early narrow gear as your main or only box.
Also, even if it is a newer wide gear box, make sure the input and ratios are what you want. It can get expensive changing stuff.
Yes, call Jerico and talk with Scott. If you can bring someone to look it over with you, better yet.
The only shifter to use is a Long Vertigate.

Run to Rund · 10-15-2012, 10:00 AM

The Hurst VGate2 is a re-label of the old Mr. Gasket Vertical gate and it works also--it looks like Long copied it. Be sure to use the stops, a removable, optional item for some years. Either the Ford top loader "kit" or the special Jerico kit (both from Hurst) should work for the rods. However, it can be hard to find a vertical gate these days; they have gotten so expensive on ebay that you might as well get the scienced out Long.

I believe there are road race hardened gears as well as the "softer" drag gears, meaning the W series Jericos wouldn't be suitable but are more readily available used because that is what Nascar racers used. Road race and drag sliders were available, with the former allowing easy downshifting but being less suitable for "serious drag racing" as Jerico put it.

10-14-2012, 08:30 PM	#1
Rory McNeil VIP Member Join Date: Jun 2007 Location: from Vancouver BC Canada, now in Nova Scotia Posts: 1,311 Likes: 317 Liked 1,103 Times in 301 Posts	Re: Question for Jerico dr4 owners Thats interesting, both my Jerico DR4`s have a number stamped into the main case, serial number I guess? I agree, it would be best to contact Jerico with the serial #, at least they should be able to tell you what its origional application was, and the gearing it left the factory with. Of course gear ratios could have been switched, and input configurations changed for a different engine, but any info is better than nothing. You certainly don`t want to get stuck with a NASCAR or road race unit. The early narrow gear stuff should be avoided, a buddy had one from the mid 80`s, a couple of years ago, and was unable to get much in the way of parts from Jerico. I don`t know what year Jerico went to the wide bearing version, but my older trans was ordered in early 1990, and is a wide gear unit. Hopefully Jerico keeps parts around for the DR4, now that they are no longer available new. __________________ NHRA 6390 STK M/S 85 Mustang

10-15-2012, 05:45 AM	#2
james schaechter VIP Member Join Date: Dec 2004 Location: Cumming GA Posts: 1,988 Likes: 1,289 Liked 1,428 Times in 296 Posts	Re: Question for Jerico dr4 owners The earlier model has narrower 3rd and 4th gears. They look similar to the casual observer, but many parts are hard to find. I would stay away from an early narrow gear as your main or only box. Also, even if it is a newer wide gear box, make sure the input and ratios are what you want. It can get expensive changing stuff. Yes, call Jerico and talk with Scott. If you can bring someone to look it over with you, better yet. The only shifter to use is a Long Vertigate. __________________ James Schaechter 3163 STK

10-15-2012, 10:00 AM	#3
Run to Rund Senior Member Join Date: Sep 2007 Location: Henderson, NV Posts: 583 Likes: 8 Liked 54 Times in 27 Posts	Re: Question for Jerico dr4 owners The Hurst VGate2 is a re-label of the old Mr. Gasket Vertical gate and it works also--it looks like Long copied it. Be sure to use the stops, a removable, optional item for some years. Either the Ford top loader "kit" or the special Jerico kit (both from Hurst) should work for the rods. However, it can be hard to find a vertical gate these days; they have gotten so expensive on ebay that you might as well get the scienced out Long. I believe there are road race hardened gears as well as the "softer" drag gears, meaning the W series Jericos wouldn't be suitable but are more readily available used because that is what Nascar racers used. Road race and drag sliders were available, with the former allowing easy downshifting but being less suitable for "serious drag racing" as Jerico put it.