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Discussion Starter #1
Hello, I was just wondering if this is possible. I've been towing alot more lately and I'm getting tired of having to borrow my father's truck. I've also been looking for an excuse to change my rear end ratio. I was wonding if Cadillac sold the towing hitch, how much it costs, and what other stuff I'd need to do to the car (i.e. rear end ratio, break away kit)?
 

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94 Fleetwood Brougham
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7,534 Posts
Re: Making a VP4 car

Well according to my 1995 Cadillac New product guide:

Gross Trailer Weight_______7000 Lb
Max Tongue Load__________840 lbs
Engine___________________5.7L V8 (RPO LT1)
Transmission______________4L60-E
Axle Ratio________________3.42
Limited Slip Differential____Not Available
Tire Size_________________P235/70R15 Goodyear Eagle GA (RPO QMV)
Battery__________________Delco Freedom 690 amp., 115min reserve capacity
Exhaust__________________Dual with heat shields
Transmission Oil Cooler_____Standard
Engine Oil Cooler__________Standard
Cooling__________________Heavy Duty (RPO V08)
Fans_____________________Primary-Mechanical / Secondard 240 electric
Generator________________140 amp. RPO KG9
Wiring Harness____________Trailering Provisions Provided
Steering Gear_____________15/13:1 w/electronic variable orifice (EVO)
Suspension_______________RPO FE2 'Ride and Handling'
Stabilizer Bars F/R_________30mm/25mm
Shock Absorbers, F/R______32mm Gas Charged
Springs, F/R______________Front @ 77N/mm, rear @ 21 N/mm
Traction Control___________Standard, includes traction control disable switch
Brakes___________________Power w/ABS
Electronic Level Control_____Standard
Trailer Hitch______________Weight Distribution Type (available from outside source)

Note the front brakes are std 12in disc, rear 11in drum, ABS is 4 channel, Traction Control includes throttle cable relaxer and application of brakes to spinning wheel (rear only). Trailer wiring harness is a 5 pin flat, comes with wiring for your trailer and wiring built into the car. I am sure HD blinker is included. Speed limited to 107 mph. OD does NOT engage at all until 44 mph with AC off, 45 mph with AC on. It will remain in OD if coasting down below, but does kick into 3rd fairly easily. Transmission shifts fairly hard at times, I don't know if this is "normal" or not. In comparisson, my Suburban trans shifts more like I would expect a Cadillac to shift. The V4P car seems very business like in the towing catagory, it feels like it would do it very well. Considering my 96 Vortec 350 Suburban K1500 can tow 6000 lbs, my Cad can tow 7000 lbs. With more tongue weight! Go figure! The springs are not bad, it rides nice, not as soft as my FE1 91 Deville. I like it for daily driving a lot. Although mileage suffers due to the trans shifting and gearing, it is still EPA rated 17/23. I get 18.5 average city/highway. And on sort trips, it nailed 23 mpg dead on. That was 65 mph, no AC, easy acceleration. Honestly it hasn't shown me it wants to get better mileage yet. The non V4P cars (2.93 and 2.56 geared cars) likely will get much better highway, they were rated 17/25 and 17/26 respectively. To put that in perspective, the NorthStar cars are all rated 16/25. So the heavy LT1 powered FW/FWB can get better city mileage and same, possibly better highway mileage! According to the EPA at least.... Who is more efficient??
 

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94 Fleetwood Brougham
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Re: Making a VP4 car

A side note to this topic:
According to ACDelco.com, the list 2 transmissions for these cars. There is a significant transmission difference so it appears, stuff that even the 9C1 and Impala SS trans doesn't get
1994

24214194 TRANSMISSION,AUTO **VPI 1-877-846-8243
With RPO 4-SPD A/TRANS(M30) 2.56R(GM8) 2.93R(GW9)CODE 4BWD
AND all these cars share the CODE 4BWD transmission :

1994 BUICK ROADMASTER ESTATE V8 5.7L 350cid GAS FI N Engine VIN = P
1994 BUICK ROADMASTER LIMITED V8 5.7L 350cid GAS FI N Engine VIN = P
1994 BUICK ROADMASTER V8 5.7L 350cid GAS FI N Engine VIN = P
1994 CADILLAC FLEETWOOD BROUGHAM V8 5.7L 350cid GAS FI N Engine VIN = P
1994 CADILLAC FLEETWOOD V8 5.7L 350cid GAS FI N Engine VIN = P
1994 CHEVROLET CAPRICE CLASSIC V8 5.7L 350cid GAS FI N Engine VIN = P
1994 CHEVROLET CAPRICE LS V8 5.7L 350cid GAS FI N Engine VIN = P
1994 CHEVROLET CAPRICE V8 5.7L 350cid GAS FI N Engine VIN = P
1994 CHEVROLET IMPALA SS V8 5.7L 350cid GAS FI N Engine VIN = P

24214198 TRANSMISSION,AUTO (ACDELCO REMAN) **VPI 1-877-846-8243
With RPO 4-SPD A/TRANS(M30) 3.42R(GU6) CODE 4AHD

1994 CADILLAC FLEETWOOD BROUGHAM V8 5.7L 350cid GAS FI N Engine VIN = P
1994 CADILLAC FLEETWOOD V8 5.7L 350cid GAS FI N Engine VIN = P
1995

24219233 TRANSMISSION,AUTO (ACDELCO REMAN) **VPI 1-877-846-8243
With RPO 4-SPD A/TRANS(M30) ^ 2.56R(GM8) ^ 2.93R(GW9) CODE 5BWD

1995 BUICK ROADMASTER ESTATE V8 5.7L 350cid GAS FI N Engine VIN = P
1995 BUICK ROADMASTER LIMITED V8 5.7L 350cid GAS FI N Engine VIN = P
1995 BUICK ROADMASTER V8 5.7L 350cid GAS FI N Engine VIN = P
1995 CADILLAC FLEETWOOD BROUGHAM V8 5.7L 350cid GAS FI N Engine VIN = P
1995 CADILLAC FLEETWOOD V8 5.7L 350cid GAS FI N Engine VIN = P
1995 CHEVROLET CAPRICE CLASSIC V8 5.7L 350cid GAS FI N Engine VIN = P
1995 CHEVROLET IMPALA SS V8 5.7L 350cid GAS FI N Engine VIN = P
24219237 TRANSMISSION,AUTO (ACDELCO REMAN) 4L60E

With RPO 4-SPD A/TRANS(M30) ^ 3.42R(GU6) CODE 5AHD
1995 CADILLAC FLEETWOOD BROUGHAM V8 5.7L 350cid GAS FI N Engine VIN = P
1995 CADILLAC FLEETWOOD V8 5.7L 350cid GAS FI N Engine VIN = P

1996
24219248 TRANSMISSION,AUTO (ACDELCO REMAN) **VPI 1-877-846-8243
With RPO 4-SPD A/TRANS(M30) ^ 2.56R(GM8) ^ 2.93R(GW9) CODE 6BWD

1996 BUICK ROADMASTER LIMITED V8 5.7L 350cid GAS FI N Engine VIN = P
1996 BUICK ROADMASTER LIMITED WAGON V8 5.7L 350cid GAS FI N Engine VIN = P
1996 BUICK ROADMASTER V8 5.7L 350cid GAS FI N Engine VIN = P
1996 CADILLAC FLEETWOOD BROUGHAM V8 5.7L 350cid GAS FI N Engine VIN = P
1996 CADILLAC FLEETWOOD V8 5.7L 350cid GAS FI N Engine VIN = P
1996 CHEVROLET CAPRICE CLASSIC V8 5.7L 350cid GAS FI N Engine VIN = P
1996 CHEVROLET IMPALA SS V8 5.7L 350cid GAS FI N Engine VIN = P

24219250 TRANSMISSION,AUTO (ACDELCO REMAN) 4L60E
With RPO 4-SPD A/TRANS(M30) ^ 3.42R(GU6) CODE 6AHD

1996 CADILLAC FLEETWOOD BROUGHAM V8 5.7L 350cid GAS FI N Engine VIN = P
1996 CADILLAC FLEETWOOD V8 5.7L 350cid GAS FI N Engine VIN = P
(The significant differences in each of the models are (this is by no means a comprehensive list, only some of what I have found, trust your trans rebuilder, not this list! It is for informational purposes only):

(2.56/2.93)
8685759 ACCUMULATOR KIT,1-2
24213019 COVER,A/TRNS FLUID PUMP
8685655 SPRING,1-2 ACCUM PSTN
24209794 SPRING,3-4 ACCUM PSTN
24202368 PLATE,C/VLV BODY SPCR or 8686012 PLATE,C/VLV BODY SPCR
24214821 VALVE,CONT(W/BODY & VLV)(REMAN)

Complete Trans non 9C1 or V4P With RPO 4-SPD A/TRANS(M30) ^ 2.56R(GM8) ^ 2.93R(GW9)
1994 24214194 TRANSMISSION,AUTO CODE 4BWD
1995 24219233 TRANSMISSION,AUTO CODE 5BWD
1996 24219248 TRANSMISSION,AUTO CODE 6BWD

(3.42)
With RPO 4-SPD A/TRANS(M30) ^ 3.42R(GU6)
24201844 ACCUMULATOR KIT,1-2
24213018 COVER,A/TRNS FLUID PUMP
8684570 SPRING,1-2 ACCUM PSTN
24212030 SPRING,3-4 ACCUM PSTN
24200608 PLATE,C/VLV BODY SPCR or 24202369 PLATE,C/VLV BODY SPCR
24200610 VALVE KIT,CONT(W/BODY & VLV)

Complete Trans RPO V4P
1994 24214198 TRANSMISSION,AUTO CODE 4AHD
1995 24219237 TRANSMISSION,AUTO CODE 5AHD
1996 24219250 TRANSMISSION,AUTO CODE 6AHD

(3.08 SEO 9C1)
24213018 COVER,A/TRNS FLUID PUMP

Complete Trans With RPO 4-SPD A/TRANS(M30) ^ 3.08R(GU4) ^ SEO POLICE CAR(9C1)4 DOORS Without RPO CAPRICE,SS(WX8)(EXPORT)
1994 24214193 TRANSMISSION,AUTO CODE 4BFD
1995 24219232 TRANSMISSION,AUTO CODE 5BFD
1996 24219249 TRANSMISSION,AUTO CODE 6BFD
 

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94 Fleetwood Brougham
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As an update to this thread, the 1994-1996 V92 car, "Trailing Provisions not to exceed 5000 lbs", which is fairly rare, is nearly the same as the V4P, only has 2.93 gears instead of 3.42's.

I have a 9C1 external oil cooler I am going to try to add to my Fleetwood now, as well as some 9C1 springs to add some stiffness....
 

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1992 Eldorado Touring
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3,688 Posts
so the wagon rear springs are not stiff enough?
 

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94 Fleetwood Brougham
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Nope, decent, I think these should be the base spring myself. I have that FE1 car in the front now that I am just about done doing the engine swap on and it is sooooo mushy it is sick. The wagon springs from the presidente Z28Coprice are ok, lets you run 50 lbs less air in the level ride, but still not enough to really let the car run with no air. The air shocks I have are probably old enough to need replacement and might help if new, but I hope the 9C1 springs are much better. Maybe in a week or 2 I will swap all of them over to 9C1. I have all now. Rear are easy enough, front may not be too bad. If I take off tomorrow I might just do it then....

My wife loves the way mine rides and drives (my own PCM tune, I think I have it darn close to perfected now, mpg is great, power is great, speed is fantastic, and the car is nearly ALWAYS in the perfect gear). She just doesn't like how EASY it is to speed in it....
 

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'93 Fleetwood Brougham...Dad's
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My wife loves the way mine rides and drives (my own PCM tune, I think I have it darn close to perfected now, mpg is great, power is great, speed is fantastic, and the car is nearly ALWAYS in the perfect gear). She just doesn't like how EASY it is to speed in it....
Have to agree mostly on this, as I'm running a very similar/same tune from N0DIH in my '95 non-V4P. Keeps things going and alive more than most tunes to date, even still with a miss or something I've yet to fix. Now, if I too only had a standard FE2 suspension...still not perfect, but would be ideal enough for me not to want to change anything else. I certainly notice the difference and prefer it on our Roadmaster, even with twice the miles.

I agree too on the FE2 should have being standard--it still rides marshmallow enough, just without the excessive flopping around. Then, the next up for towing, etc. should have been firmer yet...but, being for mostly old people when new, I can see how they stuck with the overly soft titanic 50's/60's/70's big car feel.

--------------------------------------------
As for making a V4P...there's quite a few things, but a hitch from Cadillac was never one of them. There are several aftermarket choices, however, most of which are quality--but at a bare minimum, it would also entail new rear gears & tune, new springs all around, and a few other bits.
 
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