I bought a 3/4 gear faceplate slider and a couple dog rings for a Toploader from Liberty last year, on the gamble that i could get them to work in my application. Since nobody makes any upgrades for them, I decided to see how hard it would be to faceplate the Sag's 3rd gear on my own. It worked great for me, but the longest I could get 3rd gear's dogs to last was 2 months (light street/strip car). I had turned it into a crashbox in 2nd and 3rd gears, but kept synchros in 1st and 4th. Turns out, i did everything almost exactly like Liberty did, except my tranny is a bit of an oddball.a Saginaw. Mine is done and i've been driving it for a few months, NOW I find this thread. I had been looking 6 months for just this kind of info, but couldn't find any detailed information at all, so i just decided to wing it and do my own faceplate project. WOW! I came across this thread and couldn't believe my eyes. The owner has his own visions of what he wants the club to be like and very few were running it to begin with. Not sure why nitrous was banned but yes it is beginning this year. I do plan on making MIR though the following weekend (27th) which is another long trip. I really haven't seriously considered the trip to Summerduck as it is about a 4 hour trip each way. I know that a Supershifter or a Vertigate would be better though. Not mentioned what that I also needed to further modify the shift rail to allow more engagement-again about 3/16" more. That 3/16" would have meant no additional machine would have been needed. For what ever reason they machined the input shaft too close to the gear surface (I estimate 3/16" to much and that is the source of the issues. #PRO SHIFTED INSTALL#Both knocking off the old stuff to make a collar to install the new rings. It was previously Proshifted and now it is faceplated. Here is a side by side comparison with the modified part being on the left:Ĭlick to expand.I know exactly why my toploader needed additional machining and it may have been due to the input shaft that I sent. Since I had access to the machine shop at work, I used a carbide cutter and trimmed off part of the old cone. A quick call to Paul at Liberty confirmed that I needed to either shave some of the old sychro cone off the input shaft OR at least notch it to allow the output shaft to be installed. At first it couldn't be done as the input shaft needed installed from inside the case and that left inadequate room for the output shaft to be installed behind it. I spent most of the week trying to install the new guts into the case. The unmachined areas are a larger diameter than the Ford offering. This one is just as nice as the first one that I bought from him. Since then I received a new output shaft from David Kee. They asked me what I wanted to do with the shaft and I decided that they could keep it since there was no charges involved. Liberty called and told me that when they tested the output shaft for cracks, they found one where #3 gear is. Here is a business end of a factory type toploader gear that is used with a sychro and a brass blocking ring:Īn update. #PRO SHIFTED PLUS#In his thread I hope to show through the use of pictures the differences of these 2 techniques plus reveal a few other things that I discovered in the original Liberty prepped toploader. See Liberty Face Plate vs Proshift for further details on these 2 techniques. I could have had 2nd, 3rd, and 4th Proshifted again, but that modification is not as long lasting as Faceplating and it is has less of a chance of surviving on the street. OK for an occasional jaunt, but not for a daily driver. It is possible to drive a Faceplated or Proshifted tranny on the street, but it requires a combination of double clutching and rpm matching. Engagement can be harsh and the higher the shift RPM, the smoother the shift. #PRO SHIFTED UPGRADE#As an upgrade to the old stuff, I had the 3rd and 4th gear Faceplated and since it is not offered for 2nd gear, I had them replace the old worn Proshift ring with a fresh one.Īccording to Liberty, the reason for Faceplating or Proshifting is to "eliminate the need to worry about missed shifts." Faceplating and Proshifting eliminate the synchronizers used in common street transmissions and for this reason are only recommended for track cars. I recently sent some parts to Liberty to have them modified to replace the damaged parts. Many of you will probably remember that I trashed my Liberty prepped Toploader on the first run of the season due to too an inferior 2.90 ratio aftermarket first gear, too much traction and too stiff a clutch.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |