going to be making a trip to the bone yard. WHAT Transmission MOUNTS / BRACKETS are needed to install the 4t65e/3800 from a 1999 Bonneville into a 1988 Fiero cradle ? is it a Pontiac Trans Sport Van ? Exactly what Model / year do I need to look for ?? is there a "Link" with All the "interchange mounts", oil filter housing, Etc. needed? Thanks
I Know you guys have a List of what the "stock trans brackets" need to come out of (that get used with the stock fiero Mounts.)( 4t65e) . what year model are needed ? Thanks
Stock 3800 trans and motor mount/brackets do not work. You will need a set of swap mounts. You can buy the Fiero X mounts or the ones from West Coast Fiero. If you are leaving the stick in place then the Fiero trans mounts and brackets remain and you just purchase a new front swap mount/bracket.
------------------ " THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Flotech Afterburner Exhaust, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, HP Tuners VCM Suite. "THE COLUSSUS" 87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H " ON THE LOOSE WITHOUT THE JUICE "
[This message has been edited by Dennis LaGrua (edited 06-09-2015).]
I ALREADY HAVE a 3800SC with a 4t65e-HD in my 87 Fiero. It was put in with some STOCK "Van" Trans Brackets using stock Fiero trans mounts, and an "altered" GP front motor mount. I Originally got them from FieroFlyer. I just Can't remember What he said they came out of. Specially Made brackets are NOT needed. FieroFlyer, what was it you sent me ? Thanks
If you are doing a 3800SC stick swap then just the front mount must be changed. You can go with the Pontiac Transport front bracket but it must be redrilled to fit a different mount.
------------------ " THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Flotech Afterburner Exhaust, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, HP Tuners VCM Suite. "THE COLUSSUS" 87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H " ON THE LOOSE WITHOUT THE JUICE "
No, what I already DID, and what am trying to DO Again is 3800 / 4T65e-hd swap. just am not sure what he said the brackets were out of. they Are "Factory brackets" Not something that was made after the fact.
went to GM, they no longer are made, but they are indeed 1992 Trans sport van brackets. we have a search going nationwide, and if priced reasonably are going to get ate least 5 sets, we need 3.
We went tot the bone yard, we GOT 2 sets of Trans Mount BRACKETS we needed ( To bolt the 4t65e-hd Directly to the stock Fiero mounts). We will be going back to get the rest, how ever many they have. The Mounting "brackets" from Pontiac Trans Sports, Olds Silloette and the chevy "equivalent"(Lumina van)? With BOTH the 3800 AND the 3.1 will work, they are the same brackets ! But, they are a ***** to get out with the engine trans still in the car ! GM hasn't made them in 15 years, that's the 1st thing I checked, so if you find them, grab them, they are" BOLT IN".
the Rubber MOUNTS are available Everywhere, they are useless in a Fiero. What we got off the Trans Sports are the Factory Mounting "BRACKETS" that bolt to the trans and then to the rubber mounts ! this is what people are making or having made at a great expense. it's a STEEL BRACKET bolted to the trans with 3 bolts and 1 stud to the rubber mount. It Mounts the 4t65e & HD to the Fiero without any alterations.
I am starting to get the gist of what you are saying. The front 3800 Transport Van bracket is the one that bolts to the mounting boss' on both front sides and goes under the engine. It is then redrilled to fit the Fiero front mount. That is easy to understand. Fierorog's bracket mounts this way. As for the trans; I cannot visualize how the 4T65e van brackets fit the stock Fiero auto mounts with a 4T65eHD trans.. You say that they bolt right up but I have never seen it done like this. Perhaps you have discovered something new for the earlier transmissions but not for the 03-up 4T65eHD.
------------------ " THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, HP Tuners VCM Suite. "THE COLUSSUS" 87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H " ON THE LOOSE WITHOUT THE JUICE "
You can use the Pontiac Transport transmission mounts, but on the trunk side you need to slot the cradle bolt holes 1" towards the passenger side of the car.
Just an FYI, on the 88 cradle you either have to do some additional work that Fiero Addiction noted here http://www.pontiacperforman...es/4_speed_swap.html or leave the motor a little further towards the drivers side of the car. That will probably throw off the axle formula and you might have to redrill the engine mount holes like I did.
You can use the Pontiac Transport transmission mounts, but on the trunk side you need to slot the cradle bolt holes 1" towards the passenger side of the car.
Just an FYI, on the 88 cradle you either have to do some additional work that Fiero Addiction noted here http://www.pontiacperforman...es/4_speed_swap.html or leave the motor a little further towards the drivers side of the car. That will probably throw off the axle formula and you might have to redrill the engine mount holes like I did.
This is how the 4.9L swap was commonly done using the commonly available GM 4T60e transmission brackets BUT we are talking about mounting the 4T65eHD to the Fiero cradle. I thought that the transmission mounting points for the 4T60/4T60e and 4T65e/4T65eHD transmissions are different. I know for a fact the you won't mount the 03-up like this. Could Lou be talking about using the rear side mounting points to mount the transmission?
------------------ " THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, HP Tuners VCM Suite. "THE COLUSSUS" 87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H " ON THE LOOSE WITHOUT THE JUICE "
Here is more info that may help. The GM part numbers for the 4t60 (e) transmission mount brackets are
14077768 14055407 all models with the 4 speed 4T60 (e) automatic trans. Note: Some of these models also came with the TH125H 3 speed auto. THose brackets are different. Applications w 4T60 (and there are more) : Cutlas Ciera 84-96 Buick Century 84-91 Chevrolet Celebrity 84-96 Chevrolet Lumina 92-96
So you claim is that the 4T60 brackets fit a 3800/ 4T65eHD swap application by slotting the frame 1 3/8" way for the rubber Fiero (right rear mount. That's the 4.9L swap is done.
------------------ " THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, HP Tuners VCM Suite. "THE COLUSSUS" 87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H " ON THE LOOSE WITHOUT THE JUICE "
Lou you seem to be navigating uncharted waters. I have never seen a swap that used your approach. I applaud you for discovering a mounting technique that saves money and has not been used before. People are spending hundreds of dollars for swap brackets and the only advantage is the sturdy poly mounts. You could further improve the durability by using Dickmans stock fit poly mounts with your brackets if you wanted too. IIRC the Tansport Van. Lumina Van, and Sillhouette van cradles are very similar to the Fiero sizewise. If you should find a set of plug and play axles you deserve to win the Fiero man of the year award. Keep the pictures coming. Nice work!
------------------ " THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, HP Tuners VCM Suite. "THE COLUSSUS" 87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H " ON THE LOOSE WITHOUT THE JUICE "
Lou, There was one other issue using the transport mounts on the 88 cradle. The 4T65E transmission touched the trunk side of the cradle that makes the U curve. There is sort of a seem that needs to be ground back or the transmission will hit it. That happens when you use the stock Fiero mounts because it will sit lower in the cradle then when using the poly mounts (part of the reason that I used them).
Hard to tell in this image. I wish I had one from the side to make it more obvious. This is in my 87 GT, not the Formula that I moved it to.
I sure a lot of people used these mounts. (If hey know about them !) Someone "Making" mounts won't tell you about them. I didn't discover anything, just passing the info along.
I took the Purple Reign mounts and traced them on some paper. Simple enough.
So next I put the transport brackets on the paper. Note a couple things: 1. The transport mount only uses 3 mount holes 2. If you look at the picture above the Purple Reign holes are a little oval in some of the pictures. They came this way and I have only ever mounted them on the car. I think this was part of that home brew build. Builders are much more accurate now. Edit: Bought the mounts 06/21/09
This picture is just because of my angle you couldn't see the last hole.
Why do you have to slot the rear cradle almost 2" towards the passenger side? Well because when you line them up, there is a difference in space...
So the pictures in my previous post were my 3800na with 4T65E. These two pictures are from my 3800sc with 4T65E-HD.
'Nuff Said! - Stan Lee
[This message has been edited by MulletproofMonk (edited 11-10-2015).]
Stan and Lou; got to hand it to you guys for using a 95-02 3800/4T65eHD mounting method not widely discussed or used here. Thos can be a real money saver and thanks for sharing. I could not brace the concept but the photos clearing illustrated what you are doing. The last two swaps that I have done use the 06 and 07 trans so even if I had this info, those mounts would not work. I've been using WCF 3800 swap mounts as they are specially designed and built for the later trans. So how are you guys handing the shifter reversal pattern effectively? The economical way is to just reverse and shorten the selector arm but this method places the plastic ball connector too close to the crossover pipe.
------------------ " THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, HP Tuners VCM Suite. "THE COLUSSUS" 87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H " ON THE LOOSE WITHOUT THE JUICE "
Lou , I know this is an old thread but what axle combo did you use with the Trans sport brackets and stock rubber mounts? I'm in the process of doing my first swap, 3800 na 85 gt
Originally posted by Ge-ero1: Lou , I know this is an old thread but what axle combo did you use with the Trans sport brackets and stock rubber mounts? I'm in the process of doing my first swap, 3800 na 85 gt
I did a 3800na with the 4T65E and Transport mounts. After slotting the cradle to move the engine 1" towards the passenger side of the car: Drivers Axle: Stock Fiero automatic transmission drivers side axle direct fit Passenger Axle: Used the 4T65E transmission inner cup with a stock Fiero drivers side manual transmission.
Basically just take the Fiero manual transmission cup off and slip all of it into the 4T65E cup. I was even careful removing the band so I recycled the boot and just put new grease and a band on it. I ran it for over two years every day to work. I know that some of the bearing have trouble fitting into the cups, so I should mention that I my setup was out of a LeSabre.
Not sure where you are in KY, but I think I have some manual axles here in the garage and the band tool.
what MulletproofMonk Said, but that only works with a NON HD Trans . Passenger side with a "HD" Trans- " tulip" & tripot from GTP passenger side, onto an Axle from GTP Drivers side, with the CV setup and Manual Fiero axle. once you HAVE all the "Parts Apart" Takes about 1/2 hour to "make one".
I did a 3800na with the 4T65E and Transport mounts. After slotting the cradle to move the engine 1" towards the passenger side of the car: Drivers Axle: Stock Fiero automatic transmission drivers side axle direct fit Passenger Axle: Used the 4T65E transmission inner cup with a stock Fiero drivers side manual transmission.
Do you slot the rear and the front holes or just the rear only ? Also my driver side manual axle fit right in the passenger side of the 4t65e(non hd). My donor is a 2001 Bonneville
btw thanks for the info, greatly appreciated. I'm still looking for a rear bracket because the Trans sport I got the front bracket from was sent to the crusher before I could get back to Pull-a-part to get it. I have a welder and some steel so I may just fab my own.
